The recommended daily dosage of CoQ10 for adults is between 30 and 200 milligrams, according to University of Maryland Medical Center. Generally, there are no side effects; however, CoQ10 has the potential to interact with other medications. Children under 18 should only take CoQ10 as prescribed by a doctor.
CoQ10 is an antioxidant that treats a variety of diseases, particularly heart conditions, due to its ability to prevent blood clots, states University of Maryland Medical Center. Soft-gel capsules are easier for the body to absorb than other forms, such as hard-shell capsules, oral sprays or tablets. It is also available through food sources, such as oily fish, whole grains and organ meats.