Sinusitis
"I have been on clarithromycin for about 4 days now. It gives me a terrible taste in my mouth. I&#039;m constantly thirsty, which leads to frequent bathroom breaks and the second night I was up most of the night sleeping very lightly and having anxiety. I haven&#039;t slept well at all in the 4 days that I have taken it and I notice its causing my heart to palpitate. I have a terrible sinus infection and do want to stop the medicines, but I feel like a zombie and I&#039;m looking quite pale. "