How long do i have to wait to have sex after metronidazole gel?

Don't: Do not have sexual intercourse while you are using Metronidazole vaginal gel. It can damage condoms and may result in keeping the infection untreated.

Not till done: You should not have sexual intercourse while on virtually any form of medicinal treatment which is placed vaginally (gel, foam, tablets, etc.). The ejaculate contains fluid which can render the medication less effective. Not only that but for whatever the reason you are on the medication you want to clear that up before having intercourse so your partner is not contaminated or recontaminated.