Each 2 ml serving contains: Thuja (thunja occidentals extract , 1:5 [200 mg]). Other Ingredients: Alcohol, Glycerin.
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 Ahead. 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
Below is general information about the safety of the known ingredients contained in the product Ahead. 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 used orally in amounts commonly found in foods. Thuja that is thujone-free has Generally Recognized As Safe (GRAS) status for use in foods in the US (4912).
POSSIBLY UNSAFE ...when used orally in medicinal amounts. Large doses of thuja have been reported to cause seizures, severe vomiting, organ toxicity, and death in some cases (6002,40888). There is insufficient reliable information available about the safety of thuja when used topically.
PREGNANCY: LIKELY UNSAFE
when used orally due to abortifacient activity (12); avoid using.
LACTATION: LIKELY UNSAFE
when used orally due to toxicity (11); avoid using.
Below is general information about the interactions of the known ingredients contained in the product Ahead. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Thuja products can contain thujone, which might lower the seizure threshold (1304). Theoretically, this could decrease the effectiveness of anticonvulsants drugs.
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Thuja might stimulate immune function (1305). Theoretically, taking thuja might decrease the effects of immunosuppressive therapy. Immunosuppressant drugs include azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Sandimmune), daclizumab (Zenapax), muromonab-CD3 (OKT3, Orthoclone OKT3), mycophenolate (CellCept), tacrolimus (FK506, Prograf), sirolimus (Rapamune), prednisone (Deltasone, Orasone), and other corticosteroids (glucocorticoids).
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Thuja products can contains significant amounts of thujone, a neurotoxin (1304). Theoretically, patients taking drugs that lower the seizure threshold might be at greater risk of seizure if they also take thuja. Advise patients taking these drugs to avoid thuja products. Some drugs that lower the seizure threshold include anesthetics (propofol, others), antiarrhythmics (mexiletine), antibiotics (amphotericin, penicillin, cephalosporins, imipenem), antidepressants (bupropion, others), antihistamines (cyproheptadine, others), immunosuppressants (cyclosporine), narcotics (fentanyl, others), stimulants (methylphenidate), theophylline, and others.
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Below is general information about the adverse effects of the known ingredients contained in the product Ahead. 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, large doses of thuja have been reported to cause toxicity involving headache, nervous agitation, seizures, gastric irritation, vomiting, abdominal pain, and diarrhea. Thuja toxicity has also been reported to cause liver damage, renal toxicity, and death in some cases (6002,40888).
Dermatologic
...Contact dermatitis, presenting as an itchy papular squamous eruption on the hands, developed in a 46-year-old female who handled thuja plants while gardening.
It resolved when contact with thuja was avoided. The causative ingredient of thuja was identified as limonene (113415).
In one case report, a 5-year-old female presented with a papillary eccrine adenoma. In an effort to avoid excisional biopsy, an ointment containing thuja was applied to the lesion for 6 months, resulting in peripheral extension and central necrosis of the lesion, eventually necessitating complete excision (106048).
Gastrointestinal ...Orally, large doses of thuja have been reported to cause toxicity involving gastric irritation, vomiting, abdominal pain, and diarrhea (6002,40888).
Hepatic ...Orally, large doses of thuja have been reported to cause toxicity involving liver damage and death (6002,40888). In one case report, a healthy 40-year-old female taking thuja and black cohosh for 1 month presented with 3 days of severe abdominal pain and AST and ALT levels exceeding 5 times the upper limit of normal. Symptoms improved within 5 days of supplement discontinuation and levels normalized within 2 weeks (106047). It is unclear if this reaction was due to thuja, black cohosh, or other factors.
Neurologic/CNS ...Orally, large doses of thuja have been reported to cause toxicity involving nervous agitation, seizures, and death (6002,40888).
Renal ...Orally, large doses of thuja have been reported to cause toxicity involving renal toxicity and death (6002,40888).
