Lean 1972

Methods	Randomised, double blind. Identical capsules were used for the two treatment groups and the placebo group. Outcome assessments were blinded.
Participants	50 non‐pregnant women with vaginal discharge in Singapore were included. Women with neurological diseases were excluded.
Interventions	Metronidazole versus tinidazole versus placebo all administered 200 mg 3 times daily for 10 days.
Outcomes	Parasitological and clinical cure. Side effects.
Notes	Diagnosis by dark ground microscopy. Follow up examinations on day 5, day 10, 3rd week and 4th week. No losses to follow up. 45/50 remained in hospital for the first 5 days, the remainder were hospitalised for the whole course.