Purple Mushroom Defense [Discontinued] by Enzymatic Therapy

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Allergic rhinitis (hay fever). Oral agaricus mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in people with IgE-positive birch pollen allergy shows that taking a specific agaricus mushroom product (Andosan, Immunopharma) containing 82% agaricus mushroom, 15% Hericium erinaceus mushroom, and 3% maitake mushroom extracts, 60 mL daily for 7 weeks starting before the pollen season, reduces symptoms of allergic rhinitis and allergic asthma and decreases use of anti-allergy medications when compared with placebo. During the allergy season, birch-specific IgE levels were reduced, and basophils were less sensitive to allergen activation (102919).
• Cancer. Although there is interest in using oral agaricus mushroom for the treatment of various types of cancer, there is insufficient reliable information about the clinical effects of agaricus mushroom for this purpose. Cardiovascular disease (CVD).Although there is interest in using oral agaricus mushroom for the management of CVD and CVD risk factors, there is insufficient reliable information about the clinical effects of agaricus mushroom for this purpose.
• Chemotherapy-induced adverse effects. It is unclear if oral agaricus mushroom is beneficial for reducing adverse effects in patients undergoing chemotherapy treatment. Details: Preliminary clinical research in females with gynecologic cancers shows that taking an agaricus mushroom extract three times daily while receiving chemotherapy for 6 weeks might improve some of the adverse effects of chemotherapy, such as generalized weakness, decreased appetite, and emotional instability, when compared with chemotherapy alone (15404).
• Crohn Disease. It is unclear if oral agaricus mushroom is beneficial for Crohn disease. Details: Preliminary clinical research in patients with Crohn disease shows that taking an oral agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 30 mL twice daily for 21 days does not improve fatigue, quality of life, or symptom severity when compared with placebo (94721).
• Diabetes. It is unclear if oral agaricus mushroom is beneficial for type 2 diabetes. Details: Preliminary clinical research in patients with type 2 diabetes shows that taking an agaricus mushroom extract 500 mg orally three times daily for 12 weeks, in combination with metformin and the sulfonylurea gliclazide, decreases insulin resistance and lowers fasting insulin levels more than metformin and gliclazide alone (15421).
• Hepatitis B. It is unclear if oral agaricus mushroom is beneficial for hepatitis B. Details: Preliminary clinical research in adults with chronic hepatitis B infection shows that taking agaricus mushroom extract 500 mg three times daily for 12 months decreases aspartate aminotransferase (AST) from 246 IU/L to 61 IU/L and alanine aminotransferase (ALT) from 151 IU/L to 46 IU/L (94719). However, these results are limited by small study size and the lack of a comparator group.
• Hyperlipidemia. Although there is interest in using oral agaricus mushroom for hyperlipidemia, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Multiple myeloma. It is unclear if oral agaricus mushroom is beneficial for multiple myeloma. Details: Preliminary clinical research in patients with multiple myeloma undergoing stem cell transplantation with high-dose chemotherapy shows that taking an agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 60 mL orally daily for about 7 weeks during chemotherapy does not improve treatment response or overall survival when compared with placebo (94716).
• Osteoporosis. Although there is interest in using oral agaricus mushroom for osteoporosis, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Peptic ulcers. Although there is interest in using oral agaricus mushroom for peptic ulcers, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Ulcerative colitis. It is unclear if oral agaricus mushroom is beneficial for ulcerative colitis. Details: Preliminary clinical research in patients with symptomatic ulcerative colitis shows that taking an agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 30 mL orally twice daily for 21 days improves fatigue, quality of life, and overall symptom scores when compared with placebo (94715). More evidence is needed to rate agaricus mushroom for these uses.

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INSUFFICIENT RELIABLE EVIDENCE to RATE

• Allergic rhinitis (hay fever). Although there has been interest in using oral maitake mushroom for allergic rhinitis, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Cancer. Although there has been interest in using oral maitake mushroom for cancer, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chemotherapy-induced anemia. Although there has been interest in using oral maitake mushroom for preventing chemotherapy-induced anemia, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chemotherapy-induced diarrhea. Although there has been interest in using oral maitake mushroom for preventing chemotherapy-induced diarrhea, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chemotherapy-related fatigue. Although there has been interest in using oral maitake mushroom for preventing chemotherapy-related fatigue, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chemotherapy-induced leukopenia. Although there has been interest in using oral maitake mushroom for preventing chemotherapy-induced leukemia, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chemotherapy-induced nausea and vomiting (CINV). Although there has been interest in using oral maitake mushroom for preventing CINV, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Chronic fatigue syndrome (CFS). Although there has been interest in using oral maitake mushroom for CFS, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Coronavirus disease 2019 (COVID-19). Although there has been interest in using oral maitake mushroom for COVID-19, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Diabetes. Although there has been interest in using oral maitake mushroom for diabetes, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• HIV/AIDS. Although there has been interest in using oral maitake mushroom for HIV/AIDS, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Hyperlipidemia. Although there has been interest in using oral maitake mushroom for hyperlipidemia, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Hypertension. Although there has been interest in using oral maitake mushroom for hypertension, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Laryngeal cancer. It is unclear if maitake mushroom is beneficial for improving quality of life in patients with laryngeal cancer. Details: Clinical research in patients with laryngeal or pharyngeal cancer undergoing chemo-radiation treatment shows that taking maitake mushroom polysaccharides D-fraction 1 gram 3 times daily during treatment modestly improve survival over 5 years and prevents the decline in overall quality of life when compared with taking placebo (111935).
• Myelodysplastic syndromes. Although there has been interest in using oral maitake mushroom for myelodysplastic syndromes, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Obesity. Although there has been interest in using oral maitake mushroom for obesity, there is insufficient reliable information about the clinical effects of maitake mushroom for this purpose.
• Pharyngeal cancer. It is unclear if maitake mushroom is beneficial for improving quality of life in patients with pharyngeal cancer. Details: Clinical research in patients with laryngeal or pharyngeal cancer undergoing chemo-radiation treatment shows that taking maitake mushroom polysaccharides D-fraction 1 gram 3 times daily during treatment modestly improve survival over 5 years and prevents the decline in overall quality of life when compared with taking placebo (111935).
• Polycystic ovary syndrome (PCOS). Maitake mushroom may have some benefit in PCOS, but it does not appear to be as effective as clomiphene. Details: Preliminary clinical research in patients with PCOS shows that taking three tablets of a specific combination product (SX-Fraction, Maitake Products, Inc.), each containing maitake mushroom powder 250 mg plus maitake SX-fraction (a glycoprotein-rich extract) 18 mg, three times daily starting on the first day of menses for up to 28 weeks, can improve ovulation cycle rates, but does not appear to be as effective as clomiphene. After 12 weeks of treatment, patients taking the maitake mushroom product had an ovulatory cycle rate of about 42% compared with about 70% in those taking clomiphene 50 mg daily. However, 13 out of 15 patients who failed monotherapy with maitake mushroom or clomiphene alone ovulated when both maitake mushroom and clomiphene were used for 4 cycles (17131). More evidence is needed to rate the effectiveness of maitake mushroom for these uses.

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POSSIBLY INEFFECTIVE

• Hyperlipidemia. Preliminary clinical studies show that oral reishi mushroom does not improve lipid levels in patients with hyperlipidemia or type 2 diabetes. Details: Preliminary clinical research shows that taking reishi mushroom extract 1440 mg daily for 12 weeks does not significantly improve the lipid profile in patients with hyperlipidemia (70776). Also, a meta-analysis shows that taking reishi mushroom extract 1400-4000 mg daily for 12-16 weeks does not reduce total cholesterol or low-density lipoprotein (LDL) cholesterol in patients with type 2 diabetes (91435).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Aging. Although there has been interest in using oral reishi mushroom for aging, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Altitude sickness. Although there has been interest in using oral reishi mushroom for altitude sickness, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Alzheimer disease. A small clinical study suggests that oral reishi mushroom does not improve Alzheimer disease symptoms. Details: Preliminary clinical research in patients with Alzheimer disease shows that taking reishi mushroom powder 1000 mg three times daily for 6 weeks does not improve memory, language skills, or quality of life when compared with placebo (97942).
• Asthma. Although there has been interest in using oral reishi mushroom for asthma, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Benign prostatic hyperplasia (BPH). Preliminary clinical research suggests that oral reishi mushroom extract can help reduce some lower urinary tract symptoms in patients with BPH. Details: Clinical research in patients with mild to moderate lower urinary tract symptoms (LUTS) associated with BPH, urinary incontinence, overactive bladder, or other conditions, shows that taking reishi mushroom extract 6 mg orally once daily for up to 12 weeks moderately improves total symptom severity measured on the International Prostate Symptom Score (IPSS) scale, when compared with placebo (91436,91437). A higher dose of 60 mg daily is not more effective than the 6 mg dose, and a lower dose of 0.6 mg daily is not more effective than placebo (91437). Reishi mushroom extract does not improve peak urine flow rate, residual urine volume, prostate volume, or quality of life when compared with placebo (91436,91437). The relevance of these results is unclear since not all of the patients with LUTS had BPH.
• Bronchitis. Although there has been interest in using oral reishi mushroom for bronchitis, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Cancer. It is unclear if oral reishi mushroom is beneficial when used in conjunction with chemotherapy. Details: A meta-analysis of 9 clinical trials using various reishi mushroom products in combination with chemotherapy found that complete and partial responses increased by 30% with combination therapy when compared with chemotherapy alone. However, there was no difference in overall survival (102915). The reliability and applicability of these results are unclear since the trials looked at several different types of cancer, used varying doses and durations of therapy, and were all conducted in China or other Asian countries.
• Cancer-related fatigue. It is unclear if oral reishi mushroom is beneficial in patients with breast cancer and fatigue. Details: Results from a small clinical study in breast cancer patients show that taking reishi mushroom powder 1000 mg orally three times daily for 4 weeks can improve cancer-related fatigue when compared with placebo (91438). However, it is not clear if the improvement is clinically meaningful.
• Cardiovascular disease (CVD). It is unclear if oral reishi mushroom is beneficial for reducing CVD risk factors. Details: A meta-analysis of 5 low-quality studies in adults with diabetes shows that taking reishi mushroom 1400-3000 mg daily for 12-16 weeks does not reduce CVD risk factors, including total and low-density lipoprotein (LDL) cholesterol, triglycerides, blood pressure, and body mass index, when compared with placebo (91435).
• Chronic fatigue syndrome (CFS). Although there has been interest in using oral reishi mushroom for CFS, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Chronic kidney disease (CKD). Although there has been interest in using oral reishi mushroom for CKD, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Colorectal adenoma. Limited clinical research suggests that oral reishi mushroom extract may be beneficial for reducing colorectal adenoma size. Details: Preliminary clinical research in patients with colorectal adenomas shows that taking reishi mushroom extract 1500 mg orally in two divided doses daily for 12 months reduces the number and size of adenomas when compared with no treatment (70774).
• Coronary heart disease (CHD). It is unclear if oral reishi mushroom is beneficial for CHD. Details: Preliminary clinical research shows that taking a specific reishi mushroom extract (Ganopoly, Encore International Co.) 1800 mg orally three times daily for 12 weeks reduces symptoms of CHD, such as chest pain, palpitations, and shortness of breath, in a greater percentage of patients when compared with placebo (70800).
• Diabetes. Evidence on the use of oral reishi mushroom in patients with type 2 diabetes is conflicting. Details: A meta-analysis of clinical research in patients with type 2 diabetes shows that taking reishi mushroom extract 1400-4000 mg daily for 12-16 weeks does not reduce glycated hemoglobin (HbA1c) or plasma lipids (91435). However, one preliminary clinical study in patients with type 2 diabetes shows that taking a specific reishi mushroom extract (Ganopoly, Encore International Co.) 1800 mg three times daily for 12 weeks reduces HbA1c, but not fasting blood glucose, when compared with placebo (70801).
• Fibromyalgia. It is unclear if oral reishi mushroom is beneficial for fibromyalgia. Details: A small clinical trial in patients with fibromyalgia shows that taking reishi mushroom (MundoReishi Salud S.L.) powder 3 grams twice daily for 6 weeks does not improve mood, quality of life, anthropometric measures, blood pressure, or glycemic or lipid parameters when compared with placebo (108309,108310). However, the study may have been underpowered to detect any differences between groups.
• Genital herpes. Oral reishi mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with recurrent genital herpes shows that taking 4.4 grams of a mixture of hot water extracts of reishi mushroom, terminalia, Job's tears, Wisteria floribunda, Trapa natans, and Elfvingia applanata orally once daily for 2 days, then 2.2 grams daily thereafter until outbreak resolution, decreases the time to outbreak resolution by 6 days when compared with previous outbreaks (91434).
• Gulf war syndrome. It is unclear if oral reishi mushroom is beneficial for Gulf war syndrome. Details: A very small exploratory clinical trial in adults with Gulf war syndrome shows that taking reishi mushroom extract (JHS Natural Products, Mushroom Science) 1600 mg in two divided doses daily for 30 days does not improve symptoms when compared with placebo. Also, symptoms modestly worsened after an additional 30 days of treatment at a dose of 3200 mg daily (108311).
• Hepatitis B. One small clinical study suggests that a specific reishi mushroom extract may reduce hepatitis B activity and improve liver function. Details: Preliminary clinical research shows that taking a specific reishi mushroom extract (Ganopoly, Encore International Co.) 1800 mg orally three times daily for 12 weeks reduces levels of hepatitis B viral DNA and hepatitis B surface antigen, which are markers of hepatitis B activity, and normalizes aminotransferase levels in a greater percentage of patients when compared with placebo (70799).
• Herpes labialis (cold sores). Oral reishi mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with recurrent herpes labialis shows that taking 4.4 grams of a mixture of hot water extracts of reishi mushroom, terminalia, Job's tears, Wisteria floribunda, Trapa natans, and Elfvingia applanata orally once daily for 2 days, then 2.2 grams daily thereafter until outbreak resolution, decreases the time to outbreak resolution by almost 4 days when compared with previous outbreaks (91434).
• Herpes zoster (shingles). Although there has been interest in using oral reishi mushroom for herpes zoster, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Human papillomavirus (HPV). Oral reishi mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in patients with oral HPV shows that taking a combination of reishi and coriolus mushroom powders, 400 mg orally daily for 2 months, clears HPV in 88% of patients when compared with baseline (91433). The validity of this finding is limited by the lack of a comparator group.
• Hypertension. Limited research suggests that oral reishi mushroom may be beneficial in some types of hypertension. Details: Preliminary clinical research shows that taking reishi mushroom extract 1440 mg daily for 12 weeks does not lower blood pressure in patients with hypertension (70776). However, in other clinical research, taking reishi mushroom extract 330-1440 mg daily for 1-6 months reduces blood pressure in patients with stage II or essential hypertension, but not in those with mild hypertension or diabetes (70786,70802,91435).
• Influenza. Although there has been interest in using reishi mushroom for influenza, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Insomnia. Although there has been interest in using reishi mushroom for insomnia, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Lung cancer. Small clinical studies suggest that oral reishi mushroom does not reduce the size of lung tumors. Details: A meta-analysis of preliminary clinical research shows that taking reishi mushroom does not reduce the size of lung tumors. However, it may stimulate immune function and improve quality of life in lung cancer patients when compared with control (70779).
• Peptic ulcers. Although there has been interest in using oral reishi mushroom for peptic ulcers, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose.
• Rheumatoid arthritis (RA). Oral reishi mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical trial in patients with active RA who are taking disease-modifying antirheumatic drugs shows that taking reishi mushroom extract 4 grams in combination with San Miao San (containing 2.4 grams each of atractylodes, phellodendron, and Achyranthes bidentata) daily for 24 weeks does not increase the percentage of patients achieving a 20% response based on the American College of Rheumatology (ACR) criteria or modify blood markers of disease and inflammation when compared with placebo (70767).
• Stress. Although there has been interest in using oral reishi mushroom for stress, there is insufficient reliable information about the clinical effects of reishi mushroom for this purpose. More evidence is needed to rate reishi mushroom for these uses.

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POSSIBLY EFFECTIVE

• Cancer. Taking PSK, a constituent of turkey tail mushroom, as an adjunct to standard cancer therapy may improve response rates and survival in some patients with cancer. Very limited data suggests that whole turkey tail mushroom is not beneficial. Details: The PSK constituent of turkey tail mushroom has been used as an adjunct to standard cancer therapy in Japan for several decades, in doses ranging from 1 to 3.6 grams daily (94076). It has been used in a dose of 3 grams daily for 24-36 months for breast (1648,1650,1654,1656), colorectal (1657,1660,70165,70167,70168,70171,70173,70174,70176,70190)(94076), esophageal (1649), gastric (1640,1651,1652,1657,1658,1659,1660,70161,70170,70175)(70179,70181,70183,70186,70189,70191,70194,70198), hepatic (1655,70188), and lung cancers (1653,70180,70184), as well as for leukemia (70200,70206). It has also been used in a dose of 1 gram daily for up to 72 months for colorectal cancer (94076), 1 gram three times daily for 1 month for nasopharyngeal cancer (1661,70195), and 2 grams/m2 per day in 3 divided doses, rotating in cycles with chemotherapy, for gastric cancer (1659,70194,70195). A meta-analysis of 13 clinical trials including over 2500 patients with esophageal, gastric, colon, rectal, breast, or nasopharyngeal cancer, shows that taking PSK in addition to conventional therapy reduces 5-year mortality by 9% when compared with conventional therapy alone. When individual cancer types are considered, the benefit of PSK is most evident in patients with breast, gastric, colon, or rectal cancer (94076). Another meta-analysis of 14 clinical trials shows that taking PSK, polysaccharide peptide (PSP), or turkey tail mushroom in combination with chemotherapy is associated with a 17% lower risk of mortality in some, but not all, types of cancer when compared with chemotherapy alone. However, overall there was no difference in relapse-free survival or total clinical efficacy, defined as complete responses plus partial responses (102915). The reliability and relevance of these meta-analyses is unclear since the trials looked at several different types of cancer, used varying doses and durations of therapy with different turkey tail mushroom extracts, and were all conducted in China or other Asian countries. Research on the use of whole turkey tail mushroom rather than the constituent PSK for treating cancer is limited. A small clinical study in 15 patients with inoperable hepatocellular carcinoma shows that taking turkey tail mushroom 2.4 grams daily for 6-12 weeks does not improve time to progression, progression-free survival, overall survival, or quality of life when compared with placebo (96568). However, this study was likely underpowered to detect any differences.

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Cervical dysplasia. Intravaginal turkey tail mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A specific vaginal gel (Papilocare, Procare Health) containing turkey tail mushroom, neem, carboxymethyl-beta-glucan, hyaluronic acid, gotu kola, aloe, and alpha-glucan oligosaccharide has been examined in preliminary clinical and observational research in patients with human papillomavirus (HPV)-related cervical lesions. One clinical study shows that topical application for 6 months is associated with a normal Pap smear in 85% of patients, compared with 65% of those receiving only regular monitoring. Benefits were greatest in high-risk patients (108305). In patients over 40 years of age, treatment with this gel resulted in a normal Pap smear in 92% of patients, compared with 50% of those receiving only regular monitoring (111905). Both studies also showed improvements in cervical re-epithelization and HPV clearance (108305,111905). Observational research has also been conducted. One observational study in patients with high-risk HPV infection has found that using this same product is associated with 4.8-, 2.3-, and 5.1-fold increased odds of HPV DNA clearance, remission at colposcopy, and remission with cytology at 6 months, respectively, when compared with untreated patients (108306). In another observational study, using this product for 6 or 12 months is associated with repair of cervical low-grade lesions and a normalized cytology and colposcopy in about 75% of patients. HPV clearance was achieved in 71.6% of patients (111904). Doses of gel administration have varied. The gel is usually applied once daily for 21 days, followed by 7 days with no treatment, and then alternate days for up to 2-12 months (108305,108306,111904,111905). It is occasionally applied once daily for 21 days, followed by 7 days with no treatment, repeated for 3 months, and then alternated days for 3 months (108305).
• Chronic fatigue syndrome (CFS). Although there has been interest in using oral turkey tail mushroom for CFS, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Genital herpes. Although there has been interest in using oral turkey tail mushroom for genital herpes, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Hepatitis. Although there has been interest in using oral turkey tail mushroom for hepatitis, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Muscle strength. Although there has been interest in using oral turkey tail mushroom for muscle strength, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Tinea corporis. Although there has been interest in using oral turkey tail mushroom for tinea corporis, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Upper respiratory tract infection (URTI). Although there has been interest in using oral turkey tail mushroom for URTI, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose.
• Urinary tract infections (UTIs). Although there has been interest in using oral turkey tail mushroom for UTIs, there is insufficient reliable information about the clinical effects of turkey tail mushroom for this purpose. More evidence is needed to rate turkey tail mushroom for these uses.

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POSSIBLY SAFE ...when used orally and appropriately. Agaricus mushroom extract has been safely used in doses up to 1500 mg daily for up to 12 months (15404,15421,94715,94716,94719,94721). A specific agaricus lyophilized powder product (Sen-Sei-Ro Powder Gold, Kyowa Wellness Co., Ltd.) has been safely used in doses up to 5.4 grams daily for 6 months (17185).

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

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POSSIBLY SAFE ...when used orally and appropriately as extracts. A maitake mushroom extract 3 mg/kg twice daily has been used safely for up to 12 weeks (92843). Doses up to 5 mg/kg twice daily of another maitake mushroom extract have been used safely for up to 3 weeks (61239). Maitake mushroom polysaccharides (MMP) 1-1.5 grams daily have also been used safely for up to 2 years (8188).

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

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POSSIBLY SAFE ...when an extract of reishi mushroom is used orally and appropriately for up to one year (12,5485,70767,70774,70786,70799,70800,70801,70802). ...when whole powdered reishi mushroom is used orally and appropriately for up to 16 weeks (70776,70799,70800,70801,91433,91435,91436,91437,108309).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using

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LIKELY SAFE ...when turkey tail mushroom is used orally and appropriately (5477). ...when polysaccharide krestin (PSK) and polysaccharide peptide (PSP) isolates of turkey tail mushroom are used orally and appropriately (1635,1636,1640,1641,1648,1649,1650,1651,1652,1653,1654) (1655,1656,1657,1658,1659,1660,1661,1662,70167,70168,70171,70188,70200,94076). There is insufficient reliable information available about the safety of turkey tail mushroom when used topically or intravaginally.

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

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking agaricus mushroom with antidiabetes drugs might increase the risk of hypoglycemia.  Details In one clinical study in patients with type 2 diabetes who are stabilized on conventional oral hypoglycemic agents, 3 of 29 patients taking an agaricus mushroom extract 500 mg three times daily for 12 weeks reported hypoglycemia, compared to one of 29 patients in the placebo group (15421).

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = B Theoretically, combining maitake mushroom with antidiabetes drugs might increase the risk of hypoglycemia.  Details Clinical research shows that taking maitake mushroom polysaccharide (MMP) can lower blood glucose levels in patients with types 2 diabetes (8188).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, combining maitake mushroom with antihypertensive drugs might increase the risk of hypotension.  Details Animal research shows that maitake mushroom can lower blood pressure (1213,1214,61226).

WARFARIN (Coumadin) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D There is limited evidence that maitake mushroom may increase the anticoagulant effects of warfarin.  Details In a case report, a patient previously stabilized on warfarin developed an elevated international normalized ratio (INR) of 5.1 after taking maitake mushroom (Grifron-Pro Maitake D-Fraction) 1 drop/kg daily in three divided doses for one week. The elevated INR resolved after holding warfarin for two days, then reducing the dose by 11%. It is thought that the beta-glucan constituent of maitake mushroom might cause warfarin dissociation from proteins, resulting in increased free warfarin levels and increased warfarin effects (17209).

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ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, high doses of reishi mushroom might increase the risk of bleeding.  Details A dose of 1.5 grams daily of reishi mushroom does not seem to decrease platelet aggregation, but a higher dose of 3 grams daily does (5476,13235).

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, reishi mushroom might have additive effects with antidiabetes drugs.  Details Animal research suggests that reishi mushroom decreases blood sugar (70769). However, in patients with type 2 diabetes, taking reishi mushroom does not reduce fasting glucose levels, and its effects on glycated hemoglobin are inconsistent (70801,91435).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, concurrent use of reishi mushroom with antihypertensive drugs might increase the risk of hypotension.  Details Reishi mushroom has shown hypotensive activity in animal research (5488,70784). Clinical evidence suggests that reishi mushroom reduces blood pressure in some, but not all, patients with hypertension (70786,70802).

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking turkey tail mushroom with antidiabetes drugs might increase the risk of hypoglycemia.  Details Animal research suggests that turkey tail mushroom and a polysaccharide component can have hypoglycemic effects (108307,111907).

CYCLOPHOSPHAMIDE Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might increase exposure to cyclophosphamide.  Details Some animal research shows that the PSP component of turkey tail mushroom can increase the area under the concentration-time curve (AUC) of cyclophosphamide by 44% to 50% and the half-life by 34% to 43% (96569). This interaction could potentially increase the effects and adverse effects of cyclophosphamide. However, it is not known whether PSP affects the levels of the active metabolites of cyclophosphamide that are responsible for its clinical activity.

CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Insignificant •  Occurrence = Possible •  Level of Evidence = D Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might inhibit CYP2C9.  Details Laboratory research suggests that the PSP component of turkey tail mushroom dose-dependently inhibits CYP2C9 (94075). Theoretically, taking PSP with drugs metabolized by CYP2C9 might increase drug levels and the risk of adverse effects. However, this has not been reported in humans.

TAMOXIFEN (Nolvadex) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might interfere with the absorption of tamoxifen.  Details Animal research suggests that PSP increases the time to reach maximum concentration of a single dose of tamoxifen by about 9.5 hours, or 228%. When repeated doses of tamoxifen were given, the time to reach maximum concentration was increased by about 5.6 hours, or 93%. However, PSP did not affect the maximum concentration or the area under the curve of tamoxifen (108308).

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General ...Orally, agaricus mushroom is generally well tolerated.
Most Common Adverse Effects:
Orally: Abdominal discomfort, diarrhea, and nausea.
Serious Adverse Effects (Rare):
Orally: Allergic reactions, hepatotoxicity, interstitial lung disease (ILD).

Gastrointestinal ...In one clinical trial, mild gastrointestinal side effects such as nausea, diarrhea, and abdominal discomfort were reported in 6 of 78 patients taking a specific agaricus powder product , Ltd.) 1.8-5.4 grams orally daily for 60 days. The causal relationship between this agaricus mushroom product and the associated gastrointestinal adverse effect was determined to be possible or probable in each case (17185).

Hepatic ...Three cases of severe hepatotoxicity have been reported in females with ovarian or breast cancer receiving chemotherapy who also took agaricus mushroom supplements. Two of the patients had increases in liver function tests a few days after starting agaricus mushroom, which then progressed rapidly to fatal, fulminant hepatitis. One of these patients was also an asymptomatic carrier of hepatitis B virus. In the third case, liver function improved when agaricus mushroom was stopped, worsened when it was restarted, and then recovered fully when the supplement was stopped permanently (16458).

Immunologic ...An allergic reaction has been reported in a female who took a specific agaricus powder product , Ltd.) 1.8 grams daily by mouth for 2 months. The patient developed an urticarial papular rash which resolved when the product was discontinued (17185). Allergic contact cheilitis was also reported in a patient taking a homemade agaricus mushroom extract orally. The reaction resolved upon discontinuation of agaricus mushroom (94720).

Pulmonary/Respiratory ...There is one case report of interstitial lung disease associated with the use of agaricus mushroom for approximately one month in a male with pancreatic ductal adenocarcinoma being treated with gemcitabine. Drug-induced lymphocyte stimulation test (DLST) was positive for agaricus mushroom extract and not gemcitabine. Pneumonitis improved upon discontinuation of agaricus mushroom (108313).

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General ...Orally, maitake mushroom is generally well tolerated.
Most Common Adverse Effects:
Orally: Gastrointestinal effects, including diarrhea and epigastric pain.

Dermatologic ...In a clinical trial, one patient experienced rash and pruritus after two doses of maitake mushroom polysaccharide extract. The allergic reaction cleared without intervention (61239).

Gastrointestinal ...In clinical research of a polysaccharide extract from maitake mushroom, one patient reported nausea (61239) and 2 out of 26 reported epigastric pain (17131). In a clinical trial of a liquid extract from maitake mushroom, 2 out of 21 patients experienced diarrhea, and one experienced nausea. One patient withdrew from the study due to diarrhea (92843).

Immunologic ...In a clinical trial of a liquid extract from maitake mushroom, 4 out of 21 patients experienced eosinophilia (92843).

Musculoskeletal ...In a clinical trial of a polysaccharide extract from maitake mushroom, one patient reported joint swelling (61239).

Pulmonary/Respiratory ...There is one case of occupational hypersensitivity pneumonitis (HP) caused by maitake mushroom spores (61228).

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General ...Orally, reishi mushroom is generally well tolerated.
Most Common Adverse Effects:
Orally: Dizziness, dry mouth, itching, nausea, rash, and stomach upset.

Dermatologic ...Orally, reishi mushroom can cause itching, rash, and other skin reactions (12,5479).

Gastrointestinal ...Orally, reishi mushroom can cause dryness of the mouth, throat, or nasal cavity, nausea, stomach upset, and, more rarely, diarrhea (12,70779,91438,108309).

Hematologic ...Orally, reishi mushroom can cause nosebleed and bloody stools (12,91438).

Hepatic ...One case of hepatotoxicity and one case of fatal fulminant hepatitis have been reported in patients who had used reishi mushroom powder for 1-2 months (70766). There is a case report of a 61-year-old male with hypereosinophilia associated with hepatic nodules following the use of reishi mushroom powder for about 2 months. Symptoms resolved after discontinuation of the product. Although these side effects were thought to be associated with the use of reishi mushroom powder, it is unclear if other factors played a role. The patient had been taking tegafur, gimeracil, and oteracil potassium for about 4 months following anterior resection for rectal adenocarcinoma but discontinued these agents and initiated reishi mushroom due to liver injury (108312).

Neurologic/CNS ...Orally, reishi mushroom can cause dizziness (91438). Other rare symptoms include insomnia and headache (70776,70779).

Pulmonary/Respiratory ...Respiratory allergy to reishi spores can occur (12,5479). Sore throat and runny nose have also been reported (70776,91438).

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General ...Orally, turkey tail mushroom and its PSK component are generally well tolerated. There have been reports of gastrointestinal side effects, hematological abnormalities, liver dysfunction, and palpitations, but these are in patients who received PSK in addition to standard chemotherapy. It is not known if these are due to PSK, the chemotherapy, or both.

Cardiovascular ...Palpitations have occurred when PSK is taken with standard chemotherapy for cancer (1657). It is not clear if this is due to PSK, the chemotherapy, or both.

Dermatologic ...Pigmentation of the nails and erythema have occurred when PSK is taken with standard chemotherapy (1657,1660,70175,94076). It is not clear if this is due to PSK, the chemotherapy, or both.
Intravaginally, a specific gel (Papilocare, Procare Health) containing turkey tail mushroom with neem, carboxymethyl-beta-glucan, hyaluronic acid, gotu kola, aloe, and alpha-glucan oligosaccharide has been reported to cause vulvovaginal stinging, burning, itching, and candidiasis (108305,111904). The specific role of turkey tail mushroom is unclear.

Gastrointestinal ...Nausea, vomiting, appetite loss, stomach discomfort, diarrhea, constipation, and gastric ulcer have occurred when PSK is taken with standard chemotherapy for cancer (1651,1657,70175,70201,94076). However, one study reported a decreased incidence of gastrointestinal side effects when PSK was taken with chemotherapy (70188,70197).

Hematologic ...Leukopenia, thrombocytopenia, and albuminuria have occurred when PSK is taken with standard chemotherapy (1651,1657,70175,70201,94076). It is not clear if this is due to PSK, the chemotherapy, or both.

Hepatic ...Elevated liver enzymes, liver function impairment, and hepatotoxicity have occurred when PSK is taken with standard chemotherapy (1651,1657,70175,70201,94076). It is not clear if this is due to PSK, the chemotherapy, or both.

Musculoskeletal ...Malaise and fatigue have occurred when PSK is taken with standard chemotherapy (1657,1660,70175,94076). It is not clear if this is due to PSK, the chemotherapy, or both.

Pulmonary/Respiratory ...Coughing has occurred when PSK is taken with standard chemotherapy (1657,1660,70175,94076). It is not clear if this is due to PSK, the chemotherapy, or both.

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