Multivitamin Primidone
ModerateThe folic acid in your multivitamin may make your body break down primidone faster. Primidone is one of several epilepsy medicines this can happen with. Phenobarbital and phenytoin are two others.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.