"By the time I was prescribed this medication, I was at the tail end of a two week old. The doctor saw some spots on my throat and prescribed it. The medication has made me more miserable than the actual disease. I can&#039;t keep any food in my stomach, and I have constant headaches as well as lingering nausea. Constantly sleepy and tired.  It&#039;s been four days at this time and I think I will have to stop early. My doctor prescribed 875 mg two times a day for 10 days."