Ertapen Ertapenem Valproic Acid
ModerateWhen Ertapenem (Erpen is a brand of it) is taken together with Valproic Acid, the amount of Valproic Acid in your blood has been reported to fall.
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.