Aldapen Ampicillin Drospirenone + Ethinyl Estradiol
ModerateAmpicillin can make drospirenone and ethinyl estradiol pills work less well. Other penicillins and tetracycline antibiotics may do the same.
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.
What to do: Ask your doctor or pharmacist. They may check you or change the plan so the pill keeps working well.