Arnica montana l. 10% Other Ingredients: Aloe Vera, Carbomer, DL-Panthenol, Glycerin, Purified Water, Triethanolamine.
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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 Westcoast Naturals Arnica Gel (with Aloe Vera). 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 Westcoast Naturals Arnica Gel (with Aloe Vera). Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
POSSIBLY SAFE ...when used orally in amounts commonly found in foods. Arnica has Generally Recognized As Safe (GRAS) status for use as a food flavoring in the US (4912). However, Canadian regulations do not allow its use as a food ingredient (12). ...when used orally in homeopathic dilutions of 30C and up to 5C (19110,19111,19117,19124,19126,96769). ...when used topically on unbroken skin, short-term (12).
LIKELY UNSAFE ...when used orally or when applied topically to broken skin. Arnica is considered poisonous and has caused severe or fatal poisonings (5). Arnica can cause gastroenteritis, muscle paralysis, bleeding, arrhythmia, hypertension, shortness of breath, nausea and vomiting, multi-organ failure, and death (4,5,17,104,19101,19102,19103,19104,19105,19106,19107,19108).
PREGNANCY AND LACTATION: LIKELY UNSAFE
when used orally or topically; avoid using (12).
Below is general information about the interactions of the known ingredients contained in the product Westcoast Naturals Arnica Gel (with Aloe Vera). Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Theoretically, arnica might have additive effects with anticoagulant and antiplatelet drugs. Homeopathic arnica preparations are unlikely to have this interaction.
 Details
In vitro evidence shows that sesquiterpene lactones in arnica flowers can decrease platelet aggregation (104). However, this effect has not been reported in humans.
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Below is general information about the adverse effects of the known ingredients contained in the product Westcoast Naturals Arnica Gel (with Aloe Vera). 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, arnica is unsafe and can cause toxicity.
When used in homeopathic amounts, arnica seem to be generally well tolerated. Topically, arnica also seems to be generally well tolerated.
Most Common Adverse Effects:
Orally: Bleeding, gastroenteritis, hypertension, muscle paralysis, nausea and vomiting, shortness of breath.
Topically: Contact dermatitis and irritation.
Serious Adverse Effects (Rare):
Orally: Arrhythmia, coma, multi-organ failure, and death.
Cardiovascular ...Orally, arnica can cause tachycardia or a faster heart rate (11,17113,19101,19102). A 24-year-old female presented to the emergency department with palpitations and vomiting 24 hours after ingesting a cup of tea that reportedly contained arnica flowers picked from her local area of mountainous Southern California. The species was not specified in the article and there was no indication by the authors that any testing had been done to confirm the identity of the plant (90610).
Dermatologic ...Orally, arnica can cause irritation of mucous membranes (11,17113). Topically, arnica can cause contact itchiness, dry skin, and rash (17113). Oral lesions resulted in a woman who used a mouthwash incorrectly by not following dilution instructions. The mouthwash was 70% alcohol and contained arnica and oil of peppermint (19106).
Gastrointestinal ...Orally, arnica can cause stomach pain, nausea, vomiting, and diarrhea (11,17113,19101,19102). Homeopathic arnica has been reported to cause dry mouth (30C) and sore tongue (6C) (19107). A 24-year-old female presented to the emergency department with palpitations and vomiting 24 hours after ingesting a cup of tea that reportedly contained arnica flowers picked from her local area of mountainous Southern California. The species was not specified in the article and there was no indication by the authors that any testing had been done to confirm the identity of the plant (90610).
Musculoskeletal ...Adverse effects after ingesting arnica include muscle weakness (19101). Homeopathic arnica has been reported to result in the feeling of a "throbby" head or neck (19107).
Neurologic/CNS ...Orally, arnica may cause drowsiness, nervousness, and headache (11,17113,19101,19107).
Ocular/Otic ...In a case report, accidental intake of a large amount of a homeopathic Arnica-30 resulted in acute vision loss due to bilateral toxic optic neuropathy (19105).
Psychiatric ...Oral homeopathic arnica (6C) may cause depressed feelings, specifically a feeling of unhappiness (19107).
Pulmonary/Respiratory ...Orally, arnica can cause shortness of breath (11,17113).
