Bacterial Vaginosis
NHSL Antimicrobial Guidelines
Warning
Oral metronidazole is as effective as topical treatment but is cheaper.
Less relapse with 7 day treatment than 2g stat at 4 weeks.
Treating partners does not reduce relapse.
Drug details
Drug
First line:
Metronidazole
Dosage
400mg
Duration
orally twice daily 5-7 days
Drug
Alternative options:
Metronidazole
Dosage
2g
Duration
single dose (lower efficacy rates, avoid single dose if pregnant or breastfeeding).
Drug
OR
Metronidazole 0.75% vaginal gel
Dosage
5g applicator
Duration
at night for 5 nights