Metronidazole
"No side effects at first. On 7 day treatment 2 times a day. By day 5 I noticed I've had severe insomnia, extremely dry nose, headachey, general feeling of being unwell. But infection felt cured so that's good. Don't swallow toothpaste like another reviewer suggested, just try to put way back in your mouth to swallow it fastest. Take with food! It's not good for people to swallow toothpaste 2 times a day. Stomach upset on day 5 as well. More like bad indigestion and always hungry even though I ate. But with only three pills left i'm determined to finish treatment. If it doesn't work for you and you are trying to treat bv even pregnant ask of you can try the vaginal gel if you can't take the side effects of this med."