http://www.medications.com/effect/view/41331 Horrible experience with amoxicillin, which was prescribed for a nasty sinus infection. Major nausea, fatigue, feeling lightheaded and dehydrated. All I wanted to do was to sleep. Missed 2 weeks from work. The nausea was completely debilitating. But cu Thu, 21 May 2009 03:43:52 -0400 http://www.medications.com/effect/view/41331?item=19986 I am having a similar reaction! I took it last Friday and Sat - got very dizzy and nauseous with rash, stopped after 3 doses. I have bouts of feeling nauseous, extreme thirst and back pain tonight. If I overdo it at all, at night the symptoms return - l http://www.medications.com/effect/view/41331?item=19986 Sun, 23 Aug 2009 13:55:15 -0400 http://www.medications.com/effect/view/41331?item=22451 I had a similar reaction! I've NEVER been depressed in my entire life and Amoxicillin made me feel depressed and made me vomit constantly and have diarrhea. THEN my infection STILL wasn't gone and my doctor put me on clindamycin which made everything worse http://www.medications.com/effect/view/41331?item=22451