The treatment duration in vaginal candidosis is still under discussion. Although a 3-day therapy with imidazoles is effective, many gynaecologists prescribe a 6-day therapy. Further, a recent double-blind study comparing 3 and 6 days’ treatments with econazole 150 mg demonstrated a lower relapse rate after 6 days’ therapy. It appeared to be necessary to develop a terconazole formulation adapted for this treatment duration. Our studies comparing various dosages demonstrated that 40 mg/day was adequate for a 6-day treatment. 102 patients with biologically proved vaginal candidosis were treated with this dosage. The mycological cure rate 1 week after treatment was 93%. Relapses occurred in only 12 % of the cured patients during the month following therapy. The product proved to be safe since only 2 patients experienced side-effects (burning/pruritus) not requiring discontinuation of the treatm