Simultaneous very low dose mifepristone and vaginal misoprostol for medical abortion.
OBJECTIVE: This pilot study was designed to evaluate the outcome of medical abortion following simultaneous mifepristone (100 mg) and misoprostol (800 microg). METHODS: Enrollees had gestational ages up to 56 days and desired a medical abortion. They received 100 mg of mifepristone orally and 800 microg of misoprostol vaginally. Follow-up examination occurred in 2-7 days. A phone call 3 weeks later assessed symptoms and acceptability. A 95% success rate, as seen in higher dose studies, gives a 95% confidence interval of 88-100% for 40 subjects. RESULTS: Forty women were enrolled; 39 women had follow-up visits. Completed medical abortion was confirmed for 35 (90%) of 39 women. Four women had uterine aspiration. Two patients required repeat misoprostol. Median time from medication to abortion was 7 h. Most women (92%) strongly preferred taking all medications in the clinic. CONCLUSIONS: The simultaneous administration of vaginal misoprostol with 100 mg of oral mifepristone had the outcome of completed abortion within the predicted confidence interval. In addition, simultaneous dosing was highly acceptable.