Ultra Enzyme [Discontinued] by New Sun

EFFECTIVE

• Homocystinuria. Oral betaine anhydrous is effective at reducing plasma homocysteine levels in patients with homocystinuria associated with cystathionine beta-synthase (CBS) deficiency, 5,10-methylenetetrahydrofolate reductase (MTHFR) deficiency, or cobalamin cofactor metabolism (cbl) defect. Details: Clinical research shows that taking oral betaine anhydrous reduces plasma homocysteine levels by 20% to 30% when compared with placebo in adults and children with several types of homocystinuria, including CBS deficiency, MTHFR deficiency, and cbl defect (698). Observational studies have also found that betaine anhydrous reduces plasma homocysteine levels as monotherapy, in combination with other treatments, such as pyridoxine, folate, and cobalamin, and in patients refractory to pyridoxine treatment (145,698,34956). A specific betaine anhydrous product (Cystadane, Recordati Rare Diseases Inc.) is approved by the US FDA for homocystinuria. Oral betaine anhydrous is initiated at a dose of 100 mg/kg daily in children under 3 years of age and a dose of 3 grams twice daily in children 3 years and older, then titrated to effect. Although some patients have taken up to 20 grams daily, some clinical research suggests that doses above 150 mg/kg daily do not provide additional benefit (698).

POSSIBLY EFFECTIVE

• Hyperhomocysteinemia. Oral betaine anhydrous decreases plasma homocysteine levels in people with hyperhomocysteinemia; however, any effects on cardiovascular sequela and other clinical outcomes are unclear. Details: Most clinical research in adults with normal or mildly elevated plasma homocysteine levels (<25 micromol/L) shows that taking betaine anhydrous 3-6 grams daily orally for up to 12 weeks can modestly decrease plasma homocysteine levels by 5.5% to 15% when compared with control (6810,16451,16452,34894,34896,34902,34904,34925,34936). Some research indicates that oral doses of betaine anhydrous up to 4 grams daily can lower plasma homocysteine levels without an adverse effect on lipid levels (105813). However, it is not clear whether any reduction in plasma levels of homocysteine results in a decreased risk for cardiovascular disease. In patients with kidney failure, clinical research shows that taking betaine anhydrous 4 grams daily lowers levels of plasma homocysteine after methionine loading, but does not affect fasting levels, when compared with control (16455). However, taking this dose of betaine anhydrous in combination with folate 5 mg daily does not seem to have additive homocysteine-lowering effects in patients with kidney failure when compared with folate alone (34885,34957,34963). A very small clinical study in children with hyperhomocysteinemia secondary to pyridoxine non-responsive cystathionine beta-synthase (pnrCBS) or cobalamin C (cblC) deficiencies shows that taking betaine anhydrous 100 or 250 mg/kg daily in divided doses for one month leads to similar reductions in total plasma homocysteine concentrations, suggesting that an increased dose is not beneficial in the setting of pediatric pnrCBS and cblC deficiencies. The researchers noted that increased doses of betaine anhydrous cause proportional increases in methionine concentrations, which can induce severe hypermethioninemia in patients with pnrCBS, possibly leading to increased intracranial pressure and cerebral edema. In contrast, increases in methionine and S-adenosylmethionine concentrations are desirable in patients with cblC deficiency since low concentrations of both are implicated in the pathology of cblC deficiency (111374).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Angelman syndrome. Oral betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in children with Angelman syndrome shows that taking betaine anhydrous (Cystadane, Recordati Rare Diseases, Inc.) 100-200 mg/kg daily or betaine anhydrous 6-12 grams daily for 12 months, in combination with folate, folic acid derivatives, creatine, and/or vitamin B12, does not prevent seizures or improve cognitive, motor, or language development, when compared with placebo or baseline (34932,34945).
• Athletic performance. It is unclear if oral betaine anhydrous improves athletic performance; small clinical trials have yielded conflicting findings that may be related to age, training status, and biological sex. Details: Small clinical trials in males with and without strength training experience shows that taking betaine anhydrous 2-2.5 grams daily for 10-15 days, either alone or in combination with resistance training or blood flow restriction, does not improve muscle power, strength, or performance on bench press, leg press, or squat exercises when compared with placebo (34940,34941,34947,34954,111373). In aerobic exercise training, a small clinical study in healthy untrained males shows that taking betaine anhydrous 1.25 grams twice daily with 300 mL of a sports beverage for 2 weeks does not improve aerobic capacity or performance during exhaustive endurance exercise when compared with placebo (105550). Similarly, a small clinical study in trained male runners shows that taking betaine anhydrous 5 grams once with 1000 mL of a sports beverage after becoming dehydrated does not improve long-distance running or sprinting after rehydration when compared with placebo (34916). Additional clinical research in males and females who have undergone at least 6 months of CrossFit training shows that taking betaine anhydrous 1.25 grams twice daily for 6 weeks while continuing to train does not improve muscle strength, body composition, aerobic capacity, or anaerobic performance when compared with placebo (105549). However, other research shows that betaine anhydrous benefits certain aspects of athletic performance in particular subgroups. One small clinical study in healthy, active males shows that taking betaine anhydrous 2.5 grams daily for 2 weeks improves subjective fatigue scores during exercise when compared with placebo (34941). Another small clinical study in active but untrained young females shows that taking betaine anhydrous (BetaPower, Finnfeeds) 2.5 grams daily for 8 weeks in combination with a structured resistance training program reduces body fat percentage and body fat mass, but does not improve muscle strength, when compared with placebo (98525). Another small clinical study in active females shows that taking betaine anhydrous 1.2 grams twice daily for 2 weeks improves power output during sprinting, but not oxygen uptake, when compared with placebo (107950). Betaine anhydrous has also been studied in adolescents. Preliminary clinical research in trained adolescent soccer players shows that taking betaine 1 gram twice daily orally with 300 mL water for 14 weeks improves muscle power, agility, and sprint time, but not muscle strength, when compared with placebo (108654).
• Colorectal adenoma. It is unclear if oral betaine anhydrous reduces the risk of colorectal adenoma. Details: Preliminary population research has found that high dietary betaine intake is not associated with a reduced risk of colorectal adenoma when compared with low dietary betaine intake (14845).
• Depression. Oral betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with major depression shows that taking a specific combination product (DDM Metile, Omeopiacenza) containing betaine anhydrous 125 mg and S-adenosyl-L-methionine (SAMe) 250 mg orally twice daily for 12 months improves depression symptoms when compared with amitriptyline 75 mg daily. After 12 months, patients treated with the combination product showed an average improvement in depression scores of 38%, compared with 18% in patients treated with amitriptyline (90107). It is unclear if this effect is due to betaine anhydrous, SAMe, or the combination.
• Dry mouth. It is unclear if topical betaine anhydrous is beneficial in patients with dry mouth. Details: Applying betaine anhydrous 4% topically twice daily in a toothpaste for 2 weeks reduces symptoms of dry mouth when compared with baseline (6812). Other preliminary clinical research in adults with dry mouth shows that using a specific mouthwash product (Xeros Dentaid) that contains betaine anhydrous 1.33%, xylitol 3.3%, and sodium fluoride 0.05%, each evening for 4 weeks improves dry mouth symptoms when compared with baseline (34944). It is unclear if this effect is due to betaine anhydrous, other ingredients, or the combination. Additionally, the validity of the findings from these studies is limited by the lack of a comparator group.
• Fibrocystic breast disease. Although there has been interest in using oral betaine anhydrous for fibrocystic breast disease, there is insufficient reliable information about the clinical effects of betaine anhydrous for this purpose.
• Gastroesophageal reflux disease (GERD). Oral betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that taking a combination of betaine anhydrous 100 mg, melatonin 6 mg, L-tryptophan 200 mg, vitamin B6 25 mg, folic acid 10 mg, vitamin B12 50 mcg, and methionine 100 mg daily for 40 days reduces symptoms of GERD in more patients when compared with omeprazole 20 mg daily. Symptom improvement occurred in 100% of patients who took this combination supplement, compared with only 66% of patients taking omeprazole (16011). It is unclear if this effect is due to betaine anhydrous, other ingredients, or the combination.
• Gingivitis. Topical betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study of patients with gingivitis shows that brushing with a toothpaste containing a combination of extra virgin olive oil, xylitol, and betaine anhydrous daily for 4 months decreases gingival bleeding and improves markers associated with gingival health when compared with placebo and commercial toothpaste (111372).
• Hepatitis C. Oral betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that taking pegylated interferon alpha and ribavirin in combination with betaine anhydrous (Cystadane, Recordati Rare Diseases, Inc.) and S-adenosyl-L-methionine (SAMe) daily for 12 months induces early virological response in approximately 60% of patients with hepatitis C who were previously unresponsive to treatment with pegylated interferon alpha and ribavirin. However, sustained virological response only occurred in 10% of these patients (20465). The validity of this study is limited by the lack of a comparator group. Also, it is unclear if this effect is due to betaine anhydrous, SAMe, or the combination.
• Metabolic Syndrome. It is unclear if oral betaine anhydrous is beneficial in patients with metabolic syndrome. Details: A large observational study in older adults with overweight or obesity and metabolic syndrome has found that increased dietary intake of betaine for 1 year is associated with reduced body weight, waist circumference, glycated hemoglobin (HbA1c), body weight, and triglycerides and increased levels of high-density lipoprotein (HDL) cholesterol (111375).
• Nonalcoholic steatohepatitis (NASH). It is unclear if oral betaine anhydrous is beneficial in patients with NASH. Details: Preliminary clinical research shows that taking betaine anhydrous 10 grams twice daily orally for 12 months improves NASH scores when compared with placebo (34928). Taking betaine anhydrous also normalizes liver enzyme levels and reduces inflammation and fibrosis when compared with baseline (10631,34928).
• Obesity. It is unclear if oral betaine anhydrous is beneficial in patients with obesity. Details: Preliminary clinic research in obese adults on a reduced-calorie diet shows that taking betaine anhydrous 3 grams orally twice daily for 12 weeks does not reduce body weight or fat mass or improve resting energy expenditure when compared with placebo (16452). A meta-analysis of small randomized controlled trials that studied the effects of betaine anhydrous on body composition also shows that taking betaine 1.5-20 grams daily for 2-52 weeks does not reduce body mass, fat mass, or fat-free mass when compared with control. However, the validity of this study is limited by inclusion of obese, non-obese, and healthy patients (108653).
• Osteoarthritis. Although there has been interest in using oral betaine anhydrous for osteoarthritis, there is insufficient reliable information about the clinical effects of betaine anhydrous for this purpose.
• Rett syndrome. Oral betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in female children with Rett syndrome shows that taking a combination of folate 15 mg and betaine anhydrous 6-12 grams orally daily for 12 months does not improve motor function, growth, or development when compared with placebo. In addition, one subgroup analysis suggests that taking the combination product may reduce head circumference growth rate (34922).
• Sunburn. Topical betaine anhydrous has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in healthy adults shows that applying a specific cream (Physiogel AI), which contains betaine anhydrous 0.36%, N-palmitoylethanolamine 0.3%, N-acetylethanolamine 0.21%, and sarcosine 0.24%, daily for one month prior to ultraviolet (UV) light exposure can reduce UV-induced redness when compared with placebo. However, application of this cream only once 20 minutes prior to UV exposure does not have any effect (34905). It is unclear if any benefits are due to betaine anhydrous, other ingredients, or the combination. More evidence is needed to rate betaine anhydrous for these uses.

(Read more about BETAINE ANHYDROUS)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Allergic rhinitis (hay fever). Although there has been interest in using oral betaine hydrochloride for allergic rhinitis, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Asthma. Although there has been interest in using oral betaine hydrochloride for asthma, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Atherosclerosis. Although there has been interest in using oral betaine hydrochloride for atherosclerosis, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Diarrhea. Although there has been interest in using oral betaine hydrochloride for diarrhea, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Dyspepsia. Although there has been interest in using oral betaine hydrochloride for indigestion caused by hypochlorhydria, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Food allergies. Although there has been interest in using oral betaine hydrochloride for food allergies, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Gallbladder disease. Although there has been interest in using oral betaine hydrochloride for gallbladder disease, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Hyperhomocysteinemia. Although there has been interest in using oral betaine hydrochloride for hyperhomocysteinemia, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Hypothyroidism. Although there has been interest in using oral betaine hydrochloride for hypothyroidism, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose.
• Rheumatoid arthritis (RA). Although there has been interest in using oral betaine hydrochloride for RA, there is insufficient reliable information about the clinical use of betaine hydrochloride for this purpose. More evidence is needed to rate betaine hydrochloride for these uses.

(Read more about BETAINE HYDROCHLORIDE)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Allergic rhinitis (hay fever). Although there has been interest in using oral bromelain for allergic rhinitis, there is insufficient reliable information about the clinical effects of bromelain for this condition.
• Aromatase inhibitor-induced arthralgia. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients with aromatase inhibitor-induced arthralgia shows that taking a specific combination product (Opera, Gam Farma), providing bromelain 20 mg, alpha-lipoic acid 240 mg, Boswellia serrata 40 mg, and methylsulfonylmethane 200 mg, daily for 6 months reduces arthralgia symptoms when compared to baseline (109570). The validity of these findings is limited by a lack of placebo control group. Further, it is unclear if these findings are due to bromelain, other ingredients, or the combination.
• Burns. Preliminary clinical research shows that topical bromelain is beneficial for burn debridement. It is unclear if topical bromelain is beneficial for scar prevention. Details: Preliminary clinical research and chart reviews show that gels formulated with proteolytic enzymes derived from bromelain (Debridase or NexoBrid, MediWound Ltd.), applied under an occlusive dressing for 4 hours, help debride burns, including chemical and electrical burns, in children and adults (18275,91113,103297,108149). However, only one of these studies compared the bromelain-based enzymatic debridement product to standard of care. In this study, which included surgical excision or non-surgical debridement, bromelain-derived gel decreased the time to complete debridement by 6.5 days, reduced the risk of surgical excision by 65%, and reduced the risk for autografts by 48%. However, in the long-term, there appeared to be no difference in quality of life or scarring between groups (91113).
• Cancer. Although there has been interest in using oral bromelain for cancer, there is insufficient reliable information about the clinical effects of bromelain for this condition.
• Chemotherapy-induced peripheral neuropathy. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in adults with chemotherapy-induced peripheral neuropathy shows that taking a specific product (Opera, Gamfarma s.r.l.) containing bromelain 20 mg, alpha-lipoic acid 240 mg, methylsulfonylmethane (MSM) 200 mg, and boswellia 40 mg daily for 12 weeks reduces overall pain when compared with baseline (96449). The validity of these findings is limited by the lack of a control group. Additionally, it is not clear if benefit is due to alpha-lipoic acid, the other ingredients, or the combination.
• Diabetes. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small observational study in patients with a family history of type 1 diabetes found that taking a specific product (Mucos Pharma) containing bromelain 90 mg. rutin 100 mg, and trypsin 48 mg daily for 24 months is not associated with reduced incidence of type 1 diabetes at 8 years (99472).
• Diabetic foot ulcers. Although there has been interest in using topical bromelain for diabetic foot ulcers, there is insufficient reliable information about the clinical effects of bromelain for this condition.
• Exercise-induced muscle soreness. It is unclear if oral bromelain is beneficial for preventing exercise-induced muscle soreness. Details: One small clinical study shows that taking bromelain 300 mg three times daily, immediately following an intense exercise regimen, does not reduce delayed onset muscle soreness and has no effect on pain, flexibility, or skeletal weakness when compared with either ibuprofen 400 mg three times daily or placebo (10622). However, a small clinical study shows that taking a combination protease tablet containing bromelain 50 mg, trypsin 75 mg, papain 50 mg, amylase 10 mg, lipase 10 mg, lysosome 10 mg, and chymotrypsin 2 mg, four times in one day before downhill running, can improve recovery of contractile muscle function and decrease muscle soreness when compared with placebo (67838). It is unclear if these effects are due to bromelain, other ingredients, or the combination.
• Exercise-induced respiratory infections. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in non-elite male runners shows that taking a combination product (Wobenzym Plus, Mucos Pharma) providing bromelain 540-1080 mg, rutin 600-1200 mg, and trypsin 288-576 mg daily for 3 weeks, starting one week before a marathon, does not reduce the risk of a post-race respiratory tract infection when compared with placebo (96766).
• Kidney stones (nephrolithiasis). It is unclear if oral bromelain is beneficial for kidney stone expulsion. Details: Observational research in patients with 4-10 mm kidney stones found that adding bromelain to tamsulosin is associated with a 12% increased rate of spontaneous stone expulsion when compared to tamsulosin alone (100752).
• Knee pain. It is unclear if oral bromelain is beneficial for knee pain. Details: Preliminary clinical research shows that taking bromelain (Bromelin, Lichtwer Pharma Ltd.) orally for 30 days can reduce mild, acute (duration of less than 3 months) knee pain in otherwise healthy patients when compared to baseline. A daily dose of 400 mg seems to be more effective than 200 mg daily for relieving pain, stiffness, and physical function of the knee, with reductions in symptom scores of 59% and 41%, respectively (11457).
• Lymphedema. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Some clinical research in patients who have undergone a mastectomy shows that taking a specific combination product containing bromelain, rutin, pancreatin, papain, trypsin, and chymotrypsin (Wobenzym N, Mucos Pharma) daily for 7 weeks reduces arm swelling associated with lymphedema when compared with diuretics (24560). Other preliminary clinical research in patients with primary or secondary lymphedema of the upper or lower limbs shows that taking a different combination product containing bromelain 100 mg, rutin 300 mg, and sweet clover 100 mg daily for 6 months decreases pitting, limb volume, pain, and quality of life when compared to baseline (103298). The validity of these results is limited by the lack of a control group. Additionally, it is unclear if these findings are due to bromelain, other ingredients, or the combination.
• Multiple sclerosis (MS). Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A preliminary clinical study in patients with relapsing-remitting MS shows that taking an enzyme combination containing bromelain 90 mg, rutin 100 mg, and trypsin 48 mg per tablet for at least 3 months does not affect the progression of disability, relapse rate, or central nervous system lesions when compared with placebo (99468). The validity of these results is limited by the short duration of treatment.
• Ocular floaters. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A moderate-sized clinical study in patients with spontaneous symptomatic vitreous opacities (ocular floaters) shows that taking oral mixed fruit enzyme capsules containing bromelain 190 mg, papain, and ficin once, twice, or three times daily for 3 months eliminates floaters in 55%, 63%, and 70% of patients, respectively, when compared with an elimination rate of 5% with vitamin C as a control. Additionally, patients with vitreous hemorrhage-induced symptomatic vitreous opacities taking the mixed fruit enzyme capsules 3 times daily for 3 months reduced intraocular blood by 56% and improved visual acuity, but these effects were not found for lower doses and shorter durations when compared with a control (111650). It is unclear if these effects are due to bromelain, other ingredients, or the combination.
• Osteoarthritis. It is unclear if oral bromelain is beneficial for osteoarthritis. Details: A small clinical trial shows that taking bromelain 800 mg daily for 12 weeks as an adjunctive treatment for moderate to severe knee osteoarthritis is no more effective than placebo for improving symptom scores (18274). Other preliminary clinical research shows that taking bromelain 500 mg daily for 4 weeks for mild to moderate knee osteoarthritis is less effective than diclofenac 100 mg daily for improving quality of life, joint pain, and joint function (96216). However, preliminary clinical research shows that oral combination products containing bromelain can reduce pain and improve function in knee osteoarthritis (6252,91104,91106,92235,99467,99477,103299). Bromelain 180 mg has been used in combination with trypsin 144 mg and rutin 200 mg (Phlogenzym, Mucos Pharma GMBH; Wobenzym, Mucos Pharma GmbH) three times daily for 3-12 weeks, with effects comparable to diclofenac, usually taken as 50 mg three times daily for one week, then twice daily thereafter. This product also reduces the need for rescue analgesics by 95% when compared with placebo (6252,91104,92235,99467,99477). Other studies have used a specific combination supplement (AINAT, Laboratoire de Rhumatologie Appliquée) containing Devil's claw 600 mg, turmeric 400 mg, and bromelain 300 mg, taken 2-3 times daily for 2-8 weeks (91106) or a combination of bromelain 250 mg and papain 250 mg (Nature's Life Bromelain & Papain, NutraMarks, Inc.) twice daily, plus aceclofenac 100 mg twice daily for 6 weeks (103299).
• Pain (acute). It is unclear if oral bromelain is beneficial for acute pain. Details: A meta-analysis of 9 small clinical studies in patients experiencing acute pain due to various etiologies shows that taking bromelain slightly improves subjective pain scores and allows patients to open their mouth wider after oral operations when compared with a control (113513).
• Parturition. Although there has been interest in using oral bromelain for shortening the duration of labor, there is insufficient reliable information about the clinical effects of bromelain for this purpose.
• Periodontitis. It is unclear if oral bromelain is beneficial for periodontitis. Details: A very small clinical study in adults with periodontitis shows that taking bromelain 500 mg (Anaheal) twice daily for one week after undergoing pocket elimination surgery reduces bleeding on probing but does not improve gingival index, plaque index, or probing pocket depth when compared with placebo when assessed five weeks after surgery (111691). The validity of these effects is limited by a very small sample size and inadequate statistical power.
• Pityriasis lichenoides chronica (PLC). It is unclear if oral bromelain is beneficial for PLC. Details: A case series suggests that taking bromelain 40 mg orally three times daily for one month, then twice daily for a second month, then once daily for a third month, helps treat episodes of PLC when compared to baseline (18280).
• Postoperative pain. While evidence is mixed, some small clinical studies suggest that oral bromelain reduces postoperative pain after wisdom tooth extraction. It is unclear if bromelain improves pain after other surgical procedures. Details: Meta-analyses and clinical research in a small number of patients undergoing wisdom tooth extraction shows that bromelain modestly reduces pain for up to 8 days when compared with control (91109,91110,100750,100751). Also, three small clinical trials show that bromelain 160-1500 mg, taken in 3-4 divided doses daily for 4-6 days, reduces dental pain and swelling similarly to taking ketoprofen 100 mg twice daily, diclofenac sodium 25 mg four times daily, or aceclofenac 100 mg twice daily (91109,91110,110546). In contrast, several other small clinical studies show that taking bromelain does not reduce swelling or pain after wisdom tooth extraction when compared with placebo (91107,96214,96215). These studies might have not been sufficiently powered to detect a smaller effect. Meta-analyses also suggest that bromelain does not appear to have a significant effect on postoperative swelling or trismus (100750,100751). However, a more recent study in patients undergoing wisdom tooth extraction shows that taking bromelain 500 mg three times daily for 5 days reduces the severity of postoperative swelling and trismus when compared with aceclofenac, a nonsteroidal anti-inflammatory drug (NSAID) used in some European and Asian countries (110546). Bromelain, in combination with other ingredients, has also been evaluated for reducing pain after rotator cuff tear repair. Clinical research shows that taking a specific supplement (Tenosan, Agave) containing bromelain 50 mg, arginine-L-alpha-ketoglutarate 500 mg, methylsulfonylmethane (MSM) 550 mg, hydrolyzed collagen type I 300 mg, vitamin C 60 mg, and Vinitrox 125 mg daily for 3 months decreases shoulder pain, but does not improve shoulder function, in postoperative patients (19322).
• Postoperative swelling. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small preliminary clinical study in patients undergoing surgery of the jaw shows that taking an enzyme combination of bromelain 180 mg, rutin 200 mg, and trypsin 96 mg twice daily for 5 days in addition to standard treatment reduces soft-tissue thickness (indicating the amount of swelling) at most of the nine assessed facial points when compared to control (99476).
• Rhinosinusitis. It is unclear if oral bromelain is beneficial for rhinosinusitis. Details: Several small clinical trials show that short-term and long-term use of bromelain reduces symptoms of acute and chronic sinusitis, especially nasal mucosal inflammation and edema (18276,18277,18278,18279,91105). The trials used bromelain 40 mg orally (usually the product Ananase) four times daily for six days as an adjunct to antibiotics (18276,18278,18279) or 6 bromelain tablets each containing enzymes of 500 International Pharmaceutical Federation (FIP) units for 12 weeks (91105). Bromelain is usually taken in combination with decongestants, antihistamines, and/or antibiotics. However, the studies have a number of methodological problems, and results are inconsistent. Bromelain has also been evaluated as part of a combination product. A small study in patients over 12 years old with chronic sinusitis shows that taking a combination product containing bromelain 200 mg, Boswellia serrata, black currant, and vitamin D (Flogostop Forte, Humana Italia S.p.A) 1-2 times daily for 15-30 days as an adjunctive therapy to inhaled corticosteroids modulates hyperemia of the mucosa, rhinorrhea, and local inflammation when compared with inhaled corticosteroids alone and baseline (111501). It is unclear if these findings are due to bromelain, other ingredients, or the combination.
• Sprains. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A preliminary clinical study in patients with a sprained ankle shows that taking a specific enzyme combination (Phlogenzym, Mucos Pharma) containing bromelain 90 mg, trypsin 48 mg, and rutin 100 mg, or taking different combinations of the individual enzymes three times daily for 10 days, is no more effective for relieving pain than placebo (99473).
• Tendinopathy. Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research in patients with Achilles tendon insertional tendinopathy shows that taking two sachets of a specific supplement (Tenosan, Agave, Prato, Italy) containing a total of bromelain 100 mg, arginine-L-alpha-ketoglutarate 1000 mg, methylsulfonylmethane (MSM) 1100 mg, hydrolyzed collagen type I 600 mg, vitamin C 120 mg, and Vinitrox 25 mg orally for 60 days improves function and pain when compared with placebo (19321).
• Urinary tract infections (UTIs). Oral bromelain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical trial shows that a combination of bromelain 50 mg and trypsin 1 mg (Kimotab, Mochida Pharmaceutical), taken in a dose of 8 tablets daily for 2 days, does not improve subjective symptoms of UTIs when compared with placebo (18282).
• Venous leg ulcers. Although there has been interest in using topical bromelain for venous leg ulcers, there is insufficient reliable information about the clinical effects of bromelain for this condition.
• Wound healing. It is unclear if enzymatic debridement with bromelain improves the healing of various types of chronic wounds. Details: A meta-analysis of 12 small clinical studies shows that topical bromelain reduces time to complete debridement by around 6 days but has no effect on time to healing when compared with a control (113513). However, the validity of these effects is limited by significant publication bias and a small number of studies per outcome. One small clinical study, included in the analysis above, of patients with chronic wounds related to diabetes, surgery, trauma, or venous insufficiency shows that use of bromelain-based enzymatic debridement (EscharEx, MediWound Ltd), administered as up to ten daily applications of 4 hours each, increases the incidence of complete debridement over the next 6 months to 55% of patients, compared with only 29% of those using the bromelain-free gel. However, there was no difference in changes in wound area, non-viable tissue area, or the incidence or time to complete wound closure (108148). More evidence is needed to rate bromelain for these uses.

(Read more about BROMELAIN)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Celiac disease. Although there has been interest in using oral lipase for celiac disease, there is insufficient reliable information about the clinical effects of lipase for this purpose.
• Dyspepsia. It is unclear if oral lipase is beneficial for improving symptoms of postprandial distress syndrome. Details: A small clinical trial shows that taking a specific acid-resistant lipase (Amano Enzyme USA) 280 mg immediately before a high-fat meal does not reduce postprandial bloating and nausea when compared with placebo in individuals with postprandial distress syndrome (101900).
• Inflammatory bowel disease (IBD). Although there has been interest in using oral lipase for IBD, there is insufficient reliable information about the clinical effects of lipase for this purpose.
• Prematurity. It is unclear if adding a specific form of lipase, recombinant human bile salt-stimulated lipase (rhBSSL), to infant formula improves outcomes in premature infants. Some research suggests a potential increased risk for adverse effects. Details: Human breast milk contains rhBSSL, but it is inactivated when breast milk is pasteurized for donation. Clinical research in infants born before 32 weeks' gestation shows that adding rhBSSL as 8700 units per 100 mL formula or pasteurized breast milk, for 4 weeks does not increase growth velocity, body length, or head circumference over the next 12 months when compared with formula or pasteurized breast milk devoid of lipase. However, the infants who were small for gestational age (SGA), which made up approximately 15% of the study population, grew by an additional 1.9 grams/kg daily on average when compared with placebo (101940). More evidence is needed to rate lipase for these uses.

(Read more about LIPASE)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Cancer. Although there has been interest in using oral papain for cancer, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Dental caries. It is unclear if topical papain gel is beneficial for reducing procedure time or pain in children having caries removed by a dentist. Details: A small clinical study in children 3-9 years of age with dental caries shows that application of a specific papain gel (Brix3000, Brix Medical Science) 3000 U/mg during atraumatic restorative treatment (ART) by a dentist actually increases the time required to remove caries tissue, with no effect on pain, when compared with ART alone (107434).
• Diabetic foot ulcers. Although there has been interest in using topical papain for diabetic foot ulcers, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Exercise-induced muscle soreness. Oral papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in healthy males shows that taking a combination enzyme tablet containing papain 50 mg, trypsin 75 mg, bromelain 50 mg, amylase 10 mg, lipase 10 mg, lysosome 10 mg, and chymotrypsin 2 mg, four times in one day before downhill running, improves recovery of contractile muscle function and decreases muscle soreness when compared with placebo (67838). It is unclear if these findings are due to papain, other ingredients, or the combination.
• Herpes zoster (shingles). Although there has been interest in using oral papain for shingles, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Insect bite. It is unclear if topical papain is beneficial in individuals with fire ant stings. Details: A small clinical study in individuals with fire ant stings shows that applying gauze soaked with a specific papain-containing meat tenderizer (Adolph's meat tenderizer) to the sting for 20 minutes does not reduce pain or itching when compared with placebo (67845).
• Intestinal parasite infection. Although there has been interest in using oral papain for intestinal parasite infections, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Jellyfish stings. It is unclear if topical papain is beneficial in individuals with jellyfish stings. Details: A small clinical study in individuals with jellyfish stings shows that submerging affected skin into a solution with a papain-containing meat tenderizer (Adolph's meat tenderizer), starting two minutes after a jellyfish sting and continuing for at least 20 minutes, is less effective than hot water alone in decreasing pain caused by the jellyfish sting (67835).
• Pressure ulcers. Although there has been interest in using topical papain for pressure ulcers, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Radiation dermatitis. Oral papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: One small clinical study in patients receiving pelvic radiotherapy shows that taking three capsules of a specific combination product (Wobe-Mugos E, Mucos Pharma) containing papain 100 mg, trypsin 40 mg, and chymotrypsin 40 mg per capsule, four times daily, beginning 3 days prior to radiotherapy and continuing until the last day of therapy, does not attenuate skin deterioration when compared with placebo (67834). However, another small, open-label clinical study in patients with uterine carcinoma shows that taking three capsules of the same combination product four times daily, beginning 7 days before radiotherapy and continuing for 9 weeks, reduces skin reactions when compared with control (67831). It is unclear if these findings are due to papain, other ingredients, or the combination.
• Radiation-induced cystitis. Oral papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients with uterine carcinoma receiving radiotherapy shows that taking three capsules of a specific combination product (Wobe-Mugos E, Mucos Pharma) containing papain 100 mg, trypsin 40 mg, and chymotrypsin 40 mg per capsule, four times daily, beginning 7 days before radiotherapy and continuing for 9 weeks, reduces genitourinary symptoms when compared with control (67831).
• Radiation-induced nausea and vomiting. Oral papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients receiving pelvic radiotherapy shows that taking three capsules of a specific combination product (Wobe-Mugos E, Mucos Pharma), containing papain 100 mg, trypsin 40 mg, and chymotrypsin 40 mg per capsule, four times daily, beginning 3 days prior to radiotherapy and continuing until the last day of therapy, does not reduce radiation-related nausea or vomiting when compared with placebo (67834).
• Tonsillopharyngitis. Oral papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Two small clinical studies in patients with pharyngitis and/or tonsillitis shows that use of throat lozenges containing papain 2 mg, lysozyme 5 mg, and bacitracin 200 IU daily for 4 days reduces pain and inflammation of the throat and lymph nodes when compared with placebo or disinfectant alone (964,968). It is unclear if these findings are due to papain, other ingredients, or the combination.
• Traumatic oral ulcers. Although there has been interest in using topical papain for traumatic oral ulcers, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Venous leg ulcers. Although there has been interest in using topical papain for venous leg ulcers, there is insufficient reliable information about the clinical effects of papain for this purpose.
• Wound healing. Topical papain has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients with purulent wounds shows that applying papain 1% solution plus dimethylsulfoxide (DMSO) followed by phonophoresis, a process by which ultrasound is used to increase topical drug delivery, improves wound healing when compared to baseline (67843). The validity of this finding is limited by the lack of a comparator group. Also, it is unclear if these findings are due to papain, DMSO, or the combination. More evidence is needed to rate papain for these uses.

(Read more about PAPAIN)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Aging skin. Although there is interest in using oral fermented papaya for aging skin, there is insufficient reliable information about the clinical effects of papaya for this purpose.
• Androgenic alopecia. Papaya has only been evaluated in combination with other ingredients for androgenic alopecia; its effect when used alone is unclear. Details: A clinical study in adults with androgenic and diffuse alopecia shows that applying fermented papaya 2% hair lotion also containing fermented mangosteen and caffeine on the scalp daily plus fermented papaya 0.5% shampoo also containing fermented mangosteen on the scalp 3 times weekly for 14 weeks shows improvement in hair loss intensity and the quality of hair shaft compared to baseline (111719). It is unclear if the effect is due to the fermented papaya, other ingredients, or the combination.
• Colorectal cancer. It is unclear if oral papaya fruit prevents colorectal cancer. Details: One small observational study in adults living in Thailand has found that papaya fruit consumption is associated with a 42% lower odds of developing colorectal cancer (67941).
• Dengue fever. Small clinical studies suggest that oral papaya leaf extract might increase platelet counts in patients with dengue fever. Details: A meta-analysis of mostly small clinical studies in adults with dengue fever shows that taking papaya leaf extract reduces the duration of hospital stay by about 2 days and improves mean platelet count over the next five days by about 35 x 10⁹ when compared with standard treatment. The most common dosing ranged from 500 mg to 3300 mg daily for five days in divided doses (102799). This finding is limited by imprecision and high risk of bias. One additional small clinical study in patients with severe thrombocytopenia due to dengue fever shows that taking a papaya leaf extract (Caripill, Micro Labs) 1100 mg three times daily for 5 days increases platelet counts by a greater amount through day 3 when compared with placebo, and reduces the median time to platelet recovery by one day (102800).
• Diabetes. It is unclear if oral fermented papaya improves glycemic control in patients with diabetes. Details: A small clinical study in patients with type 2 diabetes shows that consuming fermented papaya fruit 3 grams once daily for 2 months reduces fasting and postprandial blood glucose levels by 13% and 10%, respectively, when compared to baseline (67902). The validity of this finding is limited by the lack of a comparator group.
• Gallbladder cancer. It is unclear if oral fermented papaya prevents gallbladder cancer. Details: One small observational study in adults living in Thailand has found that eating papaya fruit is associated with a 66% lower odds of developing gallbladder cancer (67871).
• Gingivitis. It is unclear if using toothpaste and/or mouthwash containing fermented papaya leaf extract improves symptoms of gingivitis. Details: Preliminary clinical research in adults with good oral hygiene shows that brushing teeth twice daily with a toothpaste containing papaya leaf extract for 4 weeks, with or without the use of a papaya leaf extract-containing mouthwash, decreases gingival bleeding when compared to baseline. However, using this toothpaste with or without the mouthwash is no better than using a sodium lauryl sulfate (SLS)-free, enzyme-containing toothpaste, with or without an essential oil mouthwash (99861).
• Human papillomavirus (HPV). It is unclear if oral papaya fruit prevents persistent HPV infection. Details: A small population study in females infected with HPV has found that consuming papaya fruit at least once weekly is associated with 70% lower odds of persistent HPV infection when compared with never eating papaya fruit (67881).
• Intestinal parasite infection. Although there is interest in using oral papaya for intestinal parasite infection, there is insufficient reliable information about the clinical effects of papaya for this condition.
• Periodontitis. It is unclear if applying fermented papaya gel into gingival pockets is beneficial for periodontitis. Details: One small open-label clinical study in adults with moderate to severe periodontitis shows that, when used in addition to standard treatment, applying fermented papaya gel (Carica Co.) 7 grams into intragingival pockets for 15 minutes daily for 10 days seems to improve bleeding, plaque, and gingivitis after 7-45 days when compared with standard treatment alone (93090). The validity of this finding is limited by the lack of blinding.
• Thrombocytopenia. Although there is interest in using oral papaya leaf extract for immune thrombocytopenic purpura (ITP), there is insufficient reliable information about the clinical effects of papaya for this condition.
• Wound healing. It is unclear if topical papaya fruit gel is beneficial for wound healing. Details: A small open-label clinical study in patients with post-caesarean section wound gape shows that applying a wound dressing containing partially ripe papaya fruit 200 grams to the edges of a gaped wound for 48 hours, and re-applying as needed, seems to modestly speed up the development of granulation tissue and reduce the duration of hospitalization when compared with using hydrogen peroxide dressings, changed daily (93091). The validity of this finding is limited because the control treatment with hydrogen peroxide may cause skin damage and slow wound healing. More evidence is needed to rate papaya for these uses.

(Read more about PAPAYA)

Proteolytic enzymes represent a wide group of enzymes that are used alone or in combination. See specific monographs for effectiveness information.

(Read more about PROTEOLYTIC ENZYMES (PROTEASES))

LIKELY SAFE ...when used orally and appropriately in doses of up to 6 grams daily (698,10631). However, some patients have used up to 20 grams daily with apparent safety (698). Betaine anhydrous is available as an FDA-approved prescription product (Cystadane) (698), and also as a supplement. The European Food Safety Authority states that betaine anhydrous is safe to use in doses up to 6 mg/kg daily, in addition to usual dietary intake (105548). There is insufficient reliable information available about the safety of topical betaine anhydrous.

CHILDREN: LIKELY SAFE
when used orally and appropriately in doses up to 150 mg/kg daily (698). However, some patients have used up to 20 grams daily with apparent safety (698). Prescription betaine anhydrous (Cystadane) is approved by the US FDA for use in infants and children (698).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about BETAINE ANHYDROUS)

POSSIBLY SAFE ...when taken orally as a single dose of up to 1500 mg (93328,93329). There is insufficient reliable information available about the safety of betaine hydrochloride when used in multiple doses.

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about BETAINE HYDROCHLORIDE)

POSSIBLY SAFE ...when used orally and appropriately. Doses up to 240 mg daily have been used safely for up to a year (6252,6253,10622,11457,18281,18284,91104,91105,91106,91111)(96449,103298). Higher doses up to 3200 mg daily have been used safely, short-term (18283,110546). ...when used topically and appropriately. Bromelain has been used safely as a debriding agent for up to 4 hours (18275,91113,103297,108148,108149).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about BROMELAIN)

There is insufficient reliable information available about the safety of lipase.

CHILDREN: POSSIBLY UNSAFE
when recombinant human bile salt-stimulated lipase (rhBSSL) is used orally by premature infants. Adding rhBSSL to infant formula or pasteurized breast milk increases the risk for serious gastrointestinal adverse effects in premature infants (101940).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about LIPASE)

LIKELY SAFE ...when used orally in amounts commonly found in foods. Papain has Generally Recognized as Safe (GRAS) status in the US (4912).

POSSIBLY SAFE ...when used orally and appropriately for medicinal purposes, short-term. Papain has been used in combination with other proteolytic enzymes at a dose of up to 1200 mg daily for up to 9 weeks (964,965,968,67831,67834). ...when used topically as a diluted solution in appropriate doses for up to 20 minutes (67835,67843,67845).

POSSIBLY UNSAFE ...when used orally in large amounts. In excessive doses, papain can cause significant side effects including esophageal perforation (6). ...when raw papain is used topically. Raw papain or papaya latex is a severe irritant and vesicant (6).

PREGNANCY: POSSIBLY UNSAFE
when used orally. There is some concern that crude papain is teratogenic and embryotoxic (6).

LACTATION:
Insufficient reliable information available; avoid using.

(Read more about PAPAIN)

LIKELY SAFE ...when the ripe fruit is used orally in amounts commonly found in foods. Papaya has Generally Recognized as Safe (GRAS) status in the US (4912).

POSSIBLY SAFE ...when the leaf extract is used orally and appropriately in medicinal amounts, short term. The leaf extract has been used with apparent safety in doses of up to 3300 mg daily for up to 5 days (102799,102800). ...when the ripe fruit is used topically and appropriately, short term. The fruit has been applied with apparent safety to the gingiva or skin for up to 10 days (93090,93091).

POSSIBLY UNSAFE ...when the unripe fruit containing papaya latex and raw papain is used orally. Raw papain has been reported to cause esophageal perforation (6,93083). ...when papaya latex is used topically. Papaya latex, which contains raw papain, is a severe irritant and vesicant (6).

PREGNANCY: LIKELY SAFE
when the ripe fruit is consumed in amounts commonly found in foods.

PREGNANCY: POSSIBLY UNSAFE
when the unripe fruit containing papaya latex is used orally; avoid using. There is some concern that crude papain, a constituent of papaya latex, is teratogenic and embryotoxic (6); however, this might be due to extraneous substances rather than papain (11). Some evidence also suggests that high doses of papaya seed extract have abortifacient activity and can adversely affect fetal development (67870). Theoretically, eating large amounts of papaya seeds may have similar effects.

LACTATION: LIKELY SAFE
when the ripe fruit is consumed in amounts commonly found in foods. There is insufficient reliable information available about the safety of using papaya medicinally; avoid using.

(Read more about PAPAYA)

POSSIBLY SAFE ...when used orally and appropriately. Various proteolytic enzymes have been safely used orally in clinical research (716,964,965,968,969,6252,6253,10622,11457,18281,18284) (91104,91105,91106,91111,96449). Side effects are typically mild to moderate and most often include gastrointestinal effects. See specific monographs for more detailed information related to the safety of individual proteolytic enzymes. ...when used topically and appropriately. Various proteolytic enzymes have been safely used topically in clinical research (67835,67843,67845,91113). Some proteolytic enzymes might cause allergic reactions when used topically. See specific monographs for more detailed information related to the safety of individual proteolytic enzymes.

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about PROTEOLYTIC ENZYMES (PROTEASES))

(Read more about BETAINE ANHYDROUS)

ANTACIDS Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Betaine hydrochloride increases stomach acidity and could decrease the effects of antacids.  Details In human research, betaine hydrochloride increases stomach acidity (93328,93329). Antacids are taken to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with antacids might decrease the effects of the antacids.

H2-BLOCKERS Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Betaine hydrochloride increases stomach acidity and could decrease the effects of H2-blockers.  Details In human research, betaine hydrochloride increases stomach acidity (93328,93329). H2-blockers are used to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with H2-blockers might decrease the effects of H2-blockers.

PROTON PUMP INHIBITORS (PPIs) Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Betaine hydrochloride increases stomach acidity and could decrease the effects of PPIs.  Details In human research, betaine hydrochloride increases stomach acidity (93328,93329). PPIs are used to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with PPIs might decrease the effects of PPIs

(Read more about BETAINE HYDROCHLORIDE)

ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Bromelain may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.  Details There is one case report of a patient experiencing minor bruising while taking bromelain with naproxen (14806). Bromelain is thought to have antiplatelet activity (10639,14806,18285,18286,37234). Whether this interaction is of concern with topical bromelain is unclear. Interference with coagulation of burn wounds has been reported in a patient receiving bromelain-based enzymatic debridement. However, observational research has found that topical bromelain debridement is not associated with increases or decreases in laboratory markers of coagulation when compared with surgical debridement (110547).

TETRACYCLINE ANTIBIOTICS Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = B Theoretically, bromelain might increase levels of tetracycline antibiotics.  Details Laboratory research suggests that bromelain might increase the absorption of tetracycline antibiotics. However, a study in healthy adults reported no difference in tetracycline plasma levels when a 500 mg dose was taken with or without bromelain 80 mg (14296).

(Read more about BROMELAIN)

(Read more about LIPASE)

WARFARIN (Coumadin) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, papain might increase the effects and side effects of warfarin.  Details In one case report, a patient previously stable on warfarin was found to have an international normalization ratio (INR) of 7.4, which was attributed to ingestion of a supplement containing papain from papaya extract (613).

(Read more about PAPAIN)

AMIODARONE (Cordarone) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = D Theoretically, papaya extract may increase the levels and clinical effects of amiodarone.  Details Animal research in rats shows that a single oral dose of papaya extract, as well as multiple doses of papaya extract daily over 14 days, prior to a single dose of amiodarone delays the time to maximum amiodarone concentration. However, only the 14-day papaya extract regimen increases systemic amiodarone exposure by 60% to 70% (93093). This interaction has not been reported in humans.

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = B Concomitant use of antidiabetic drugs with fermented papaya can produce additive effects. It is unclear if other forms of papaya have the same effect.  Details A small low-quality clinical study in patients with type 2 diabetes who are taking glibenclamide shows that taking a fermented papaya preparation 3 grams daily for 2 months decreases fasting and postprandial blood glucose levels when compared to baseline. Additionally, of the 25 patients in the study, 9 required a reduction in glibenclamide dose (67902).

LEVOTHYROXINE (Synthroid, others) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, consuming large quantities of papaya fruit can reduce the clinical effects of levothyroxine.  Details In one case-report, a 37-year-old male with a history of thyroidectomy who was stabilized on levothyroxine for 5 years presented with hypothyroidism after consuming 5-6 papaya fruits daily for 14 days during vacation. In a controlled re-challenge test involving 5-6 papayas daily, the patient remained euthyroid for 7 days, but developed mild hypothyroidism after 14 days. Both times, thyroid levels normalized 40-45 days after discontinuing papaya (93087).

WARFARIN (Coumadin) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use of warfarin with papain-containing papaya extract might increase the effects and side effects of warfarin.  Details In one case report, a patient previously stable on warfarin was found to have an international normalization ratio (INR) of 7.4, which was attributed to ingestion of a supplement containing papain from papaya extract (613).

(Read more about PAPAYA)

(Read more about PROTEOLYTIC ENZYMES (PROTEASES))

General ...Orally, betaine anhydrous is generally well tolerated.
Most Common Adverse Effects:
Orally: Body odor, diarrhea, elevated cholesterol levels, GI distress, nausea, vomiting.
Serious Adverse Effects (Rare):
Orally: Cerebral edema.

Cardiovascular ...Betaine anhydrous might have adverse effects on the plasma lipid profile. Some studies have reported a 3% to 4% increase in total and low-density lipoprotein (LDL) cholesterol levels with betaine anhydrous 6 grams daily (16452,16455,16456,34904). A meta-analysis of 6 studies in adults, some with obesity and/or prediabetes, shows that taking betaine anhydrous 4-6 grams daily for 6-24 weeks is associated with a mean increase in total cholesterol of 4 mg/dL, with no significant change in LDL cholesterol, high-density lipoprotein (HDL) cholesterol, or triglyceride levels (105814). Another meta-analysis of 12 studies, some in healthy adults and others in adults with various disease states, shows that taking betaine anhydrous 1.5-20 grams daily for 2-52 weeks is associated with a mean increase in total cholesterol of 14 mg/dL, and a mean increase in LDL cholesterol of 10 mg/dL, with no change in triglyceride or HDL cholesterol levels (105813).

Gastrointestinal ...Orally, betaine anhydrous can cause vomiting, nausea, GI distress, and diarrhea (698,10631,34888,34928,111374).

Neurologic/CNS ...When used orally to treat homocystinuria due to cystathionine beta-synthase deficiency, elevated plasma methionine concentrations can occur following use of betaine anhydrous, which might lead to cerebral edema (698,111374).

Other ...Orally, betaine anhydrous can cause body odor (698,10631).

(Read more about BETAINE ANHYDROUS)

General ...Orally, betaine hydrochloride is generally well tolerated when taken as a single dose.

Gastrointestinal ...Theoretically, the hydrochloric acid produced from betaine hydrochloride might irritate gastric or duodenal ulcers or impede ulcer healing. It might also cause heartburn.

(Read more about BETAINE HYDROCHLORIDE)

General ...Orally, bromelain seems to be well tolerated.
Most Common Adverse Effects:
Orally: Diarrhea, flatulence, gastric upset, headache.
Topically: Pruritus, urticaria.

Dermatologic ...Topically, bromelain may cause dermal allergic reactions including urticaria, pruritus, and skin swelling (9184). Redness, swelling, burning, pain at the application site, and cellulitis have also been reported rarely (108148,113513). In one case, a fixed drug eruption with pruritis near the groin was reported in a 33-year-old male taking bromelain 50 mg orally daily for 10 days. After discontinuation of bromelain and treatment with topical corticosteroid, the lesion resolved. Upon re-challenge with bromelain, the lesion reappeared in the same area (103300).
In another case report, a 61-year-old male with a history of chronic lower leg ulceration secondary to chronic venous hypertension and recurrent deep vein thrombosis on rivaroxaban presented with a deep-dermal burn on his lower calf. Bromelain-based topical enzymatic debridement agent Nexobrid 2 grams was applied to the burn site. Thirty minutes later, the patient experienced two instances of hemorrhage at the site of debridement. The patient was stabilized and treated with fluids, packed red cells, and tranexamic acid, and then the Nexobrid was removed (111656). Caution should be used in patients with underlying coagulopathies.

Gastrointestinal ...Orally, bromelain may cause gastrointestinal disturbances, including diarrhea, nausea, vomiting, flatulence, and abdominal pain (9184,18274,18282,96216,113513).

Immunologic ...Immunoglobulin E (IgE)-mediated allergic reactions to bromelain may occur (9184).
If inhaled, bromelain may cause sensitization and allergic reactions such as asthma (37199,37215,37233). In case reports of occupational inhalation of bromelain, additional allergic symptoms included difficulty swallowing, throat itching, eye irritation, and rhinitis (37214).

(Read more about BROMELAIN)

General ...No adverse effects have been reported in adults. However, a thorough evaluation of safety outcomes has not been conducted.
Serious Adverse Effects (Rare):
Orally: Gastrointestinal adverse effects, such as necrotizing enterocolitis, when recombinant human bile salt-stimulated lipase is used in premature infants.

Gastrointestinal ...Orally, when added to the formula or pasteurized breast milk consumed by premature infants, recombinant human bile salt-stimulated lipase (rhBSSL) can cause gastrointestinal adverse effects, including abdominal distension, flatulence, constipation, colic, abdominal pain, gastroenteritis, vomiting, regurgitation, and rectal bleeding (101940). Premature infants receiving rhBSSL also had a slightly higher rate of necrotizing enterocolitis (NEC) when compared with those receiving placebo. After review by a panel of experts, it was determined that the rate of confirmed or suspected NEC in infants consuming rhBSSL was 3.3%, compared with 0.5% in those receiving placebo. Although this rate of NEC is lower than the historical rate of occurrence in premature infants (11%), a possible increased risk for NEC cannot be ruled out (101940).

(Read more about LIPASE)

General ...Orally and topically, papain seems to be well tolerated when used short-term at appropriate doses. Taking high oral doses may be unsafe.
Most Common Adverse Effects:
Orally: Allergic reactions in sensitive individuals.
Topically: Urticaria and pruritus in sensitive individuals.
Serious Adverse Effects (Rare):
Orally: Esophageal perforation and severe gastritis with high doses.

Dermatologic ...Topically, papain can cause itching (966). Urticarial reactions and itching have been reported in people occupationally exposed to papain, with papain confirmed as the causative agent by skin prick tests or radioallergosorbent tests (RAST) (95533,95534). In a randomized controlled trial assessing the effects of papain, trypsin, and chymotrypsin on adverse effects from radiotherapy, moderate to severe epitheliolysis was more frequent in the enzyme-treated group than the placebo group (67834). It is unclear if this adverse effect is due to papain, other enzymes, or the combination.

Gastrointestinal ...Orally, papain has been associated with diarrhea. In a randomized controlled trial assessing the effects of papain, trypsin, and chymotrypsin on adverse effects from radiotherapy, moderate to severe diarrhea was more frequent in the enzyme-treated group than the placebo group (67834). However, it is unclear if this adverse effect is due to papain, other enzymes, or the combination. Papain has also been associated with gastric ulcers and esophageal perforation in case reports of phytobezoars treated with papain (67848). In general, large amounts of papain can cause esophageal perforation (6). Ingestion of papaya latex (raw papain) can cause severe gastritis.

Genitourinary ...Orally, papain has been associated with hypernatremia in case reports of phytobezoars treated with papain (67848).

Immunologic ...Orally, papain may cause allergic reactions, including itchy watery eyes, runny nose, sneezing, abdominal cramps, sweating, and diarrhea, in individuals sensitive to papain (6,967). Occupational exposure to airborne papain dust may also cause respiratory allergic reactions (95532,95533,95534,95535,95536).

Pulmonary/Respiratory ...Occupational exposure to airborne papain dust may cause respiratory allergic reactions. Symptoms include rhinitis, sneezing, conjunctivitis, dyspnea, wheezing, cough, and asthma. In most cases, papain is confirmed as the causative agent by skin prick tests, radioallergosorbent tests (RAST), or detection of papain-specific immunoglobulin E (IgE) and IgG (95532,95533,95534,95535,95536).

(Read more about PAPAIN)

General ...Orally, papaya fruit is well tolerated when consumed in food amounts. Papaya leaf extract seems to be generally well tolerated.
Most Common Adverse Effects:
Orally: Nausea and vomiting from papaya leaf extract.
Topically: Burning sensation from unripe papaya.
Serious Adverse Effects (Rare):
Orally: Severe allergic reactions.

Dermatologic ...Orally, high doses of papaya might cause yellow skin discoloration. A case of carotenemia has been reported for a 42-year-old female who consumed 1.5-2 papayas daily for 6 months. The condition resolved when she stopped eating papayas (67929).
Topically, unripe papaya fruit may cause occasional burning sensation when applied to skin ulcers (67856).

Gastrointestinal ...Orally, the leaf extract has been reported to cause nausea and vomiting in clinical research (102799). A case of esophageal perforation has been reported for a previously healthy 27-year-old female who used papain, a constituent of papaya latex, to digest a piece of meat stuck in her esophagus (93083).

Immunologic ...Orally, papain, a constituent of raw, unripe papaya, has been reported to cause allergic reactions in sensitive individuals, including itchy watery eyes, runny nose, sneezing, abdominal cramps, sweating, and diarrhea (6,967). Papaya may also cause hypersensitivity reactions such as systemic contact dermatitis, which occur more commonly in people who are allergic to latex (6197,7853,57635). A case of systemic contact dermatitis has been reported for a 55-year-old female with no prior history of atopic disease or drug allergy after ingesting a throat lozenge containing papaya juice (67942).

Other ...In regions with arsenic-contaminated soil, papaya fruits contain a higher mean concentration of arsenic compared with many other forms of vegetation grown in the regions. Eating papaya from these regions is thought to contribute to higher dietary levels of arsenic (32461,67879).

(Read more about PAPAYA)

General ...Orally, proteolytic enzymes are generally well tolerated. See specific monographs for detailed safety information related to individual proteolytic enzymes.
Most Common Adverse Effects:
Orally: Gastrointestinal upset.
Serious Adverse Effects (Rare):
Topically: Allergic reactions.

Gastrointestinal ...Orally, some patients taking proteolytic enzymes may have gastrointestinal complaints (101517).

Immunologic ...Proteolytic enzymes are commonly found in laundry detergents and pre-spotter products. Rarely, protease specific IgE positive tests possibly related to these products have occurred. Exposure may be airborne or topical (102705). In addition, in case reports, occupational exposure to the airborne proteolytic enzyme pepsin has resulted in allergic rhinoconjunctivitis or asthma (102706,102707).

(Read more about PROTEOLYTIC ENZYMES (PROTEASES))