I took 2 benadryl the night before and today I got a prescription for Azithromycin. Will I be overdosing medication?
The Drug Interaction Checker does not show any interactions between Benadryl and azithromycin, so there shouldn't be a problem.
As a general rule, it's a good idea to be sure your doctor knows about any other prescriptions, over-the-counter medications or dietary supplements you've taken before he gives you a prescription. You can also ask your pharmacist about possible drug interactions. Pharmacists are generally more than happy to answer your questions.