Metronidazole
trichomoniasis
"I was prescribed flagyl 500 mg for trich and bv to be taken twice a day for 7 days. All I have to say is thank God I'm on my last day with this med. I've had horrible side effects, like constant headache, nausea, tiredness, loss of appetite, and it feels like I been hit by a car. On the bright side though I no longer have a discharge or odor whatsoever. I definitely learned my lesson about having unprotected sex that's for sure! Well good luck on this med it does work!"