Clarithromycin
"I have terrible anxiety and was very afraid to take biaxin because I'd never taken it before. I worry about crazy things like having an anaphylactic reaction to medications, throat swelling shut, not being able to breathe, hives ect. I was on a triple antibiotic treatment of Biaxin, Flagyl, and Prilosec  twice a day with Protonix taken alone every morning.  I always ate yogurt twice a day with the medication as well as a meal so I my stomach wouldn't hurt or be upset. I never took the medication without food as  instructed so I never had any stomach problems at all. The only side effect I had was an odd taste in my mouth but it wasn't overwhelming or bothersome."