Coenzyme Q10
Food supplement declared in France, decision dated 6 November 2026
Coenzyme Q10 (Synervital) is a food supplement declared in France. Status: declared in France, may be marketed. None of the rules we check flags an issue with its declared composition.
- Brand
- Synervital
- Food business operator placing the product on the market
- IEDBS
- Status
- Declared in France, may be marketed: the authorities did not object to the declaration (this is neither an authorisation nor a safety assessment)
- Form
- Capsule
- Daily dose
- 1 à 3 gélules par jour
- Intended populations
- General population
- Not recommended (according to the manufacturer)
- Adolescents (under 18), Children (under 12), Young children (aged 1 to 3), Infants (under 1 year), Children (under 6), Children (under 10)
- Objectives stated by the manufacturer (these are not authorised claims)
- Antioxidant
Declaration 368586, procedure Article 15. Compl'Alim, food supplement declarations (France), retrieved 15 November 2026.
Declared composition
Other active ingredients
| Name | Per day |
|---|---|
| Ubiquinone | not declared |
Other ingredients
maltodextrine
List from the declaration, administrative decision dated (Compl'Alim, food supplement declarations (France)).
Has the product changed? Photograph the packaging.
Regulatory points
None of the rules we check applies to the declared ingredients.
This information reproduces the manufacturer's declaration to the administration (DGAL). It does not say whether the product is effective and does not replace advice from a doctor or pharmacist, particularly during pregnancy or when taking medication.
Official warnings (Health Canada)
Health Canada publishes warnings on these ingredients:
- Ubiquinone
Read the warning, when it applies and the studies cited
Coenzyme Q10 (UBIQUINONE-10)
Route of administration: Oral
Cautions and warnings
Condition of application: All products.
Ask a health care practitioner/health care provider/health care professional/doctor/physician before use if you are pregnant or breastfeeding.
Ask a health care practitioner/health care provider/health care professional/doctor/physician before use if you are taking blood pressure medication (Rosenfeldt et al. 2007; Singh et al. 1999).
Sources cited by Health Canada (2)
- Rosenfeldt FL, Haas SJ, Krum H, Hadj A, Ng K, Leong JY, Watts GF. Coenzyme Q10 in the treatment of hypertension: a meta-analysis of the clinical trials. Journal of Human Hypertension 2007;21(4):297-306. PubMed Meta-analysis
- Singh RB, Niaz MA, Rastogi SS, Shukla PK, Thakur AS. Effect of hydrosoluble coenzyme Q10 on blood pressures and insulin resistance in hypertensive patients with coronary artery disease. Journal of Human Hypertension 1999;13(3):203-208. PubMed Randomised trial
Applies to products providing more than 100 mg of Coenzyme Q10 per day.
Ask a health care practitioner/health care provider/health care professional/doctor/physician before use if you are taking blood thinners (Engelsen et al. 2003; Landbo and Almdal 1998; Spigset 1994).
Sources cited by Health Canada (3)
- Engelsen J, Nielsen JD, Hansen KF. [Effect of coenzyme Q10 and Ginkgo biloba on warfarin dosage in patients on long-term warfarin treatment. A randomized, double-blind, placebo-controlled cross-over trial]. Ugeskr Laeger 2003;165(18):1868-1871 (in Danish). PubMed Randomised trial
- Landbo C, Almdal TP. [Interaction between warfarin and coenzyme Q10]. Ugeskr Laeger 1998;160(22):3226-3227 (in Danish). PubMed Case report
- Spigset O. Reduced effect of warfarin caused by ubidecarenone. Lancet 1994;344(8933):1372-1373. PubMed Case report
Condition of application: Migraine prophylaxis/prevention.
Ask a health care practitioner/health care provider/health care professional/doctor/physician if migraine frequency increases and associated nausea and vomiting persist or worsen.
They concern the ingredient, not this product or its dose. They do not replace medical advice.
Other declarations with the same name
This name is used by more than 10 declarations from different companies, so it does not identify one product. See every declaration with this name.
Brand : Synervital
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