Zithromax and erythromycin (sp?) are about the only 2 I can take. There are a few others I've taken, but their names aren't common. I can't take quinolones (Levaquin is one, Cipro is the other I took) because every time I've taken one I've ended up in physical therapy for one joint or the other (last two times was with my rotator cuff). A new one out is Factiv.. but I broke out in spots from head to toe from that which is the same reaction I had when I first took amoxicillin (which is why they tell me I can't take penicillin). I never had a lot of antibiotics growing up, I think I'm just sensitive to certain classes of drugs.