Metronidazole
"I am only on day three of this medication and the annoying itchiness has mostly subsided. However, I am a big girl who usually never experiences any harsh side effects with medicine. Yet this makes me very drowsy and cloudy most of the day. Also, DO NOT DRINK ALCOHOL ON THIS MEDICATION. DON'T. It is very dangerous. I didn't think about it on my first day and had one margarita and two beers (which normally, would only give me a slight buzz). I left the party bc I was feeling very tired. By the time I got home you would have though I had been taking shots all night, I felt so intoxicated. I passed right out when I hit the sheets. Very scary."