How long does it take for tinidazole to work for BV?

Tinidazole, like metronidazole, is prescribed as a single 2-g oral dose for the treatment of trichomoniasis. For bacterial vaginosis, the tinidazole dose is 2 g once daily for two days or 1 g once daily for five days, which is a less frequent and shorter regimen than metronidazole 500 mg twice daily for seven days.