upper respiratory tract infection
"I was prescribed this to treat my sinus infection. It's been almost two days now and while I feel slightly better, the nausea and upset stomach is too much for me. I have eaten both yogurt or rice before taking it and I still get very sick. It is also making everything I eat seem extremely salty. Even when I breathe, I taste salt. I've called my doctor and they're changing my antibiotic to something else. Apparently this one is making my potassium levels rise too high."