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

Editorial Information

Last reviewed: 18/05/2022

Next review date: 18/05/2025

Author(s): NHS Lanarkshire Antimicrobial Management Committee, Dr Dundas, Dr Hylands, S McCormick, Heather Boyle.

Version: V1

Approved By: AMC; ADTC

Reviewer name(s): NHS Lanarkshire Antimicrobial Management Committee.

Document Id: June 2022