Acerux 250 Acyclovir Phenytoin Sodium
ModerateAcyclovir can lower the amount of phenytoin in the blood and make phenytoin work less well. The same kind of effect is described for CYP2C9 inducers.
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.