CoQ10 dosages

Standardization involves measuring the amount of certain chemicals in products to try to make different preparations similar to each other. It is not always known if the chemicals being measured are the "active" ingredients. CoQ10 products sold in stores have been found to contain variable amounts of claimed ingredients. Early studies used low doses, while more recent research suggests that higher doses may be safe and have greater effects.

Adults (18 years and older)
A) By mouth (oral) : General : 50-1200 milligrams of CoQ10 have been taken in divided doses by mouth daily.

B) On the skin (topical) : Gum disease (periodontitis) : 85 milligrams of CoQ10 per milliliter of soybean oil suspension has been applied to the surface of affected areas once weekly using a plastic syringe, in one study.

C. Through the veins (intravenous) : Heart protection during surgery : Most studies of CoQ10 for heart protection during bypass surgery have used CoQ10 taken by mouth. One study used intravenous CoQ10, 5 milligrams per kilogram of body weight, given 2 hours prior to surgery. Safety is not clear. Any therapies used close to the time of surgery should be discussed with the surgeon and a pharmacist prior to starting.

Children (younger than 18 years)
There is not enough scientific information to recommend the safe use of Coenzyme Q10 in children. A qualified healthcare provider should be consulted before considering use.