Metronidazole
"This medicine has surely taught me how to take a pill without letting it touch your mouth. However I still can not escape the  awful taste in my mouth all the time, kinda  metallic like. I've also found it's a must to eat with taking medicine, when I don't eat it comes right back and I have to throw up. With food feels like I'm on a  laxative  as often as I have to poop,  not diarrhea though luckily.  Also, I'm  pretty nauseous 70% of the day well on this Pill.  I said all of that to say taking this medicine has been the worst experience I've had with antibiotic.  On the flipside I'm on the day three and no longer have symptoms of BV.  This is my second time taking this yr each time 500mg 2x7 days"