Each capsule contains: Artemisia annua 300 mg • Juglans nigra 75 mg. Other Ingredients: Gelatin, Grapefruit Seed Extract, Magnesium Stearate.
Brand name products often contain multiple ingredients. To read detailed information about each ingredient, click on the link for the individual ingredient shown above.
In 2004, Canada began regulating natural medicines as a category of products separate from foods or drugs. These products are officially recognized as "Natural Health Products." These products include vitamins, minerals, herbal preparations, homeopathic products, probiotics, fatty acids, amino acids, and other naturally derived supplements.
In order to be marketed in Canada, natural health products must be licensed. In order to be licensed in Canada, manufacturers must submit applications to Health Canada including information about uses, formulation, dosing, safety, and efficacy.
Products can be licensed based on several criteria. Some products are licensed based on historical or traditional uses. For example, if an herbal product has a history of traditional use, then that product may be acceptable for licensure. In this case, no reliable scientific evidence is required for approval.
For products with non-traditional uses, some level of scientific evidence may be required to support claimed uses. However, a high level of evidence is not necessarily required. Acceptable sources of evidence include at least one well-designed, randomized, controlled trial; well-designed, non-randomized trials; cohort and case control studies; or expert opinion reports.
Finished products licensed by Health Canada must be manufactured according to Good Manufacturing Practices (GMPs) as outlined by Health Canada.
Below is general information about the effectiveness of the known ingredients contained in the product Para Tech. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
Below is general information about the safety of the known ingredients contained in the product Para Tech. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
LIKELY SAFE ...when the fruit (nut) is consumed in amounts normally found in food.
POSSIBLY UNSAFE ...when the bark is used orally or topically, due to its juglone content (2). When applied topically, juglone-containing bark can cause skin irritation. When used orally on a daily basis, the juglone-containing bark of a related species (English walnut) is associated with increased risk of tongue cancer and lip leukoplakia (2,12). There is insufficient reliable information available about the safety of the leaf or hull when used orally as a medicine or when applied topically.
PREGNANCY AND LACTATION: LIKELY SAFE
when the fruit (nut) is consumed in amounts normally found in foods.
PREGNANCY AND LACTATION: POSSIBLY UNSAFE
when the bark is used orally or topically (12); avoid using.
There is insufficient reliable information available about the safety of black walnut leaf or hull when used orally in medicinal amounts during pregnancy or lactation; avoid using.
POSSIBLY SAFE ...when used orally and appropriately, short-term. Sweet Annie 300 mg daily has been used with apparent safety in studies lasting up to 9 months (11055,94520,94521). Sweet Annie tea, prepared from dried leaves and twigs and consumed in divided doses daily, has been used with apparent safety for up to 7 days (11055,11058). While rare, there is some concern that Sweet Annie might cause liver damage (16895,103254,103255).
POSSIBLY SAFE ...when used sublingually and appropriately, short-term. Sweet Annie up to 2400 biological units daily as sublingual immunotherapy has been used with apparent safety in studies lasting up to 16 months (106441,112392,112393,112394). There is insufficient reliable information available about the safety of Sweet Annie when used topically.
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
Below is general information about the interactions of the known ingredients contained in the product Para Tech. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Sweet Annie may alter plasma levels and clinical effects of drugs metabolized by CYP2B6.
 Details
In vitro research shows that the Sweet Annie constituent artemisinin induces CYP2B6, possibly increasing CYP2B6 activity by 1.6-fold (92501,109316). However, Sweet Annie extract seems to inhibit the activity of CYP2B6 in vitro, suggesting that other constituents of Sweet Annie play a role in its effects on the overall activity of this enzyme (109316). More information is needed to determine whether taking Sweet Annie extract affects the metabolism of CYP2B6 substrates.
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Sweet Annie may alter plasma levels and clinical effects of drugs metabolized by CYP3A4.
Details
In vitro research shows that the Sweet Annie constituent artemisinin induces CYP3A4, possibly increasing CYP3A4 activity by 1.9-fold (92501). However, Sweet Annie extract seems to inhibit the activity of CYP3A4 in vitro, suggesting that other constituents of Sweet Annie play a role in its effects on the overall activity of this enzyme (109316). More information is needed to determine whether taking Sweet Annie extract affects the metabolism of CYP3A4 substrates.
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Theoretically, concomitant use might have additive adverse hepatotoxic effects.
Details
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Below is general information about the adverse effects of the known ingredients contained in the product Para Tech. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
General
...Orally, black walnut fruit (nut) is well tolerated.
However, the leaf, bark, and hull of black walnut contain high quantities of tannins, which may cause adverse effects when used orally or topically.
Most Common Adverse Effects:
Orally: The leaf, bark, and hull can cause gastrointestinal upset.
Topically: Hull preparations may cause a temporary yellow or brown discoloration at the site of application. The leaf, bark, and hull can cause skin irritation.
Serious Adverse Effects (Rare):
Orally: The bark may increase the risk for tongue cancer or lip leukoplakia when used long-term.
All routes of administration: Allergic reactions, including anaphylaxis.
Dermatologic ...Topically, black walnut leaf, bark, or hull may have an irritating effect on the skin due to tannin content. Black walnut hull preparations might cause a temporary yellow or brown discoloration of the skin at the site of application (12).
Gastrointestinal ...Orally, black walnut leaf, bark, or hull may cause gastrointestinal upset due to tannin content (12). Also, daily use of the juglone-containing bark of a related species (English walnut) is associated with increased risk of tongue cancer and lip leukoplakia (2,12).
Hepatic ...Orally, black walnut leaf, bark, or hull may cause liver damage if taken for extended periods of time due to tannin content (12).
Immunologic ...Tree nuts, which include black walnuts, can cause allergic reactions in sensitive individuals. Due to the prevalence of this allergy in the general population, tree nuts are classified as a major food allergen in the United States (105410).
Renal ...Orally, black walnut leaf, bark, or hull may cause kidney damage if taken for extended periods of time due to tannin content (12).
General
...Orally, Sweet Annie is generally well-tolerated.
Most Common Adverse Effects:
Orally: Nausea and vomiting.
Serious Adverse Effects (Rare):
Orally: Hepatotoxicity.
Gastrointestinal ...Orally, Sweet Annie might cause gastrointestinal upset including nausea and vomiting in some patients (11058,112393).
Hepatic
...Orally, Sweet Annie might cause hepatic adverse effects (16895,103254,103255).
In one case, a 52-year-old patient developed hepatitis after taking the Sweet Annie constituent artemisinin 200 mg three times daily for 10 days. The patient developed abdominal pain and dark urine and was found to have elevated liver enzymes consistent with hepatitis. Symptoms resolved within 2 weeks of discontinuing use. Although it is possible this supplement caused liver disease in this patient, it is not certain. In clinical trials evaluating artemisinin, elevated liver enzymes have only been reported in around 0.9% of patients. However, the dose of artemisinin in this case was substantially higher than a typical dose (16895). A case of severe acute cholestatic hepatitis has also been reported in a 51-year-old male who drank Sweet Annie tea daily, prepared using 1.25 grams of Sweet Annie powder, for malaria prophylaxis during a 4-week trip to Ethiopia. Three weeks after his return, he presented with malaise, abdominal discomfort, jaundice, elevated liver enzymes, and markers of cholestasis. The patient was treated with corticosteroids and ursodeoxycholic acid and ultimately recovered (103255).
A series of cases linking the use of a supercritical carbon dioxide extract of Sweet Annie to hepatoxicity has also been reported. Of the 29 reports of adverse hepatic reactions to this extract, 19 patients noted symptoms within 12 weeks of starting the extract, 16 patients experienced jaundice, and 9 patients required hospitalization. Other common symptoms of hepatotoxicity included abdominal pain, vomiting, nausea, fever, headache, anorexia, malaise, fatigue, and lethargy. All but one case involved doses below or up to the extract's recommended dose of 300 mg daily. Upon discontinuation, symptoms resolved completely or were improved in nearly all cases (103254).
Immunologic ...One case of a mild allergic reaction to Sweet Annie tea has been reported. The reaction was characterized by a rash and cough that resolved quickly and did not require treatment (11059). When low doses are taken sublingually by individuals allergic to Sweet Annie, numbness of the tongue and throat itching have been reported (109315,112392,112393,112394).
