Each 10 drop serving contains: Aesculus hippocastanum 1:20 extract (DHE: 0.83 mg) 0.017 ml • Castanea sativa 1:20 extract (DHE: 0.83 mg) 0.017 ml • Sorbus Domestica 1:20 extract (DHE: 0.83 mg) 0.017 ml. Other Ingredients: Ethanol, Glycerin, Purified Water.
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 Circu Gen (Phyto Gen # 825). 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 Circu Gen (Phyto Gen # 825). 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 the fruit (chestnut) is used orally in the amounts found in food (12). There is insufficient reliable information available about the safety of European chestnut fruit, leaf, or bark when used orally in amounts larger than those found in foods.
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
LIKELY SAFE ...when standardized horse chestnut seed extracts are used orally and appropriately, short-term. These extracts, from which esculin, a toxic constituent, has been removed (9420), have been used with apparent safety for 2-12 weeks (281,282,283,284,285,12113,95429,95430).
UNSAFE ...when the raw seed, bark, flower, or leaf is used orally. Horse chestnut contains significant amounts of the toxin esculin, and can be lethal (17). There is insufficient reliable information available about the safety of horse chestnut when used topically, intravenously, or intramuscularly.
CHILDREN: UNSAFE
when the raw seeds, bark, flower, or leaves are used orally.
Poisoning has been reported from children drinking tea made with twigs and leaves (9,55528).
PREGNANCY AND LACTATION: UNSAFE
when the raw seed, bark, flower, or leaf are used orally.
Horse chestnut preparations can be lethal (17); avoid using. There is insufficient reliable information available about the safety of horse chestnut seed extract when used during pregnancy and lactation; avoid using.
Below is general information about the interactions of the known ingredients contained in the product Circu Gen (Phyto Gen # 825). Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Horse chestnut may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
 Details
Horse chestnut contains the constituent esculin which has been shown to have antithrombotic effects. Therefore, horse chestnut might have antiplatelet effects (19). This has not been shown in humans.
|
Below is general information about the adverse effects of the known ingredients contained in the product Circu Gen (Phyto Gen # 825). 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, European chestnut is generally safe when eaten as a food. When used medicinally, a thorough evaluation of safety outcomes has not been conducted.
Gastrointestinal ...European chestnut contains tannins which may cause gastrointestinal disturbances when taken orally (12).
Oncologic ...European chestnut contains tannins. Some animal experiments show that tannins may cause cancer; others show that they may prevent it (12). Regular consumption of herbs with high tannin concentrations correlates with increased incidence of esophageal or nasal cancer (12).
General
...Orally, horse chestnut seed extract, from which the toxic constituent esculin has been removed, seems to be well-tolerated.
Topically, no adverse effects have been reported. However, a thorough evaluation of safety outcomes has not been conducted.
Most Common Adverse Effects:
Orally (extract): Dizziness, gastrointestinal upset, headache, and pruritus.
Orally (seed or bark): Gastrointestinal irritation and toxic nephropathy.
Cardiovascular ...Orally, there is one case report of pericardial tamponade following exudative pericardial effusion in a previously healthy 32-year-old male who consumed three boxes of horse chestnut paste over 6 weeks. The patient was treated with steroid therapy for 2 months, as well as colchicine 0.5 mg twice daily and ibuprofen 600 mg twice daily for 3 months. These cardiovascular events were considered to be possibly related to the antiplatelet activity of horse chestnut or to an immunologic response to antigens present in horse chestnut paste (91972). A case of atrial fibrillation is also reported in a previously healthy 46-year-old male after accidental ingestion of a horse chestnut seed. The patient also presented with abdominal pain, nausea, sweating, and palpitations. The arrhythmia resolved within a few hours without medical intervention (110439).
Dermatologic ...Orally, horse chestnut seed extract has been reported to cause pruritus (282,12113,55486).
Gastrointestinal ...Orally, horse chestnut seed extract has been reported to cause nausea, vomiting, diarrhea, abdominal pain, constipation, dry mouth, gastrointestinal upset, and dyspepsia (282,12113,55477,55486,55493,55520,110439).
Hepatic
...Orally, there is one case report of hepatotoxicity in a 69-year-old female who took 6-15 tablets of a specific product (Venencapsan) containing horse chestnut leaf, milfoil, celandine, sweet clover, milk thistle, and dandelion root daily for 6 weeks.
The patient's symptoms disappeared 6 weeks after discontinuing the product and reappeared following re-initiation (55518). Another case report describes a 70-year-old male presenting with acholia, choluria, and jaundice after 3 weeks of self-treatment with an unspecified dose of a specific combination product (Venenkraft) containing horse chestnut. The patient presented with elevated liver transaminase and bilirubin levels, and was diagnosed with drug-induced liver injury. Following discontinuation, laboratory values and symptoms progressively resolved (107702). In both of these case reports, it is unclear if hepatotoxicity was due to horse chestnut, another ingredient, or the combination.
Intravenously and intramuscularly, isolated cases of liver toxicity have occurred after administration of horse chestnut extract containing aescin (2,512,552).
Immunologic
...Pollen from the horse chestnut flower can cause allergic reactions in children (7775).
Horse chestnut can also cause hypersensitivity reactions, which occur more commonly in people who are allergic to latex (7853,8418).
Rectally, the horse chestnut constituent esculin has caused severe allergic contact dermatitis and proctitis in a 38-year old man (10383).
Intravenously, administration of aescin can cause anaphylaxis (18,553).
Musculoskeletal ...Orally, calf spasms have been reported in patients with CVI who took horse chestnut seed extract (282).
Neurologic/CNS ...Orally, horse chestnut seed extract has been reported to cause headache or dizziness (55486,55520).
Renal
...Orally, high doses of aescin have been reported to cause kidney toxicity (55525).
Horse chestnut seed and bark can cause toxic nephropathy (4). A case of life-threatening kidney rupture occurred in a patient who was taking horse chestnut seed extract and had been diagnosed with angiomyolipoma, a condition characterized by increased risk of kidney rupture with hemorrhage. The rupture was attributed to the anticoagulant effects of horse chestnut seed extract, which may have increased the risk of hemorrhage (55496).
Intravenously, isolated cases of kidney toxicity have occurred after administration of horse chestnut containing aescin (512).
