WHO multinational study of three misoprostol regimens after mifepristone for early medical abortion.

Objectives: To compare the side effect profiles of regimens of oral and vaginal administration of misoprostol after a single oral dose of 200 mg of mifepristone and to investigate patients' perceptions of medical abortion.

Design: Double-blind, randomised controlled trial.

Setting: Fifteen gynaecological clinics in 11 countries.