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  • Title: First trimester abortion with mifepristone and three doses of sublingual misoprostol: a pilot study.
    Author: Singh KC, Ummat S, Rajaram S, Goel N.
    Journal: Aust N Z J Obstet Gynaecol; 2005 Dec; 45(6):495-8. PubMed ID: 16401215.
    Abstract:
    OBJECTIVE: To evaluate the efficacy and safety of a medical abortion regimen with multiple doses of sublingual misoprostol 24 h after mifepristone. METHODS: The regimen was designed on the basis of pharmacokinetics of various routes of administration of misoprostol. Forty women < or = 8 weeks' gestation were given mifepristone 200 mg orally, followed 24 h later by three doses of misoprostol 200 microgm sublingually 6 h apart. They were followed up on day 3 and day 14 with transvaginal ultrasound. Pain and bleeding were assessed using a visual analogue scale and acceptability, by a questionnaire. RESULTS: Abortion outcome was assessed in terms of onset of pain and vaginal bleeding, time of expulsion of products and duration of vaginal bleeding. Seventy-five per cent of women experienced pain within 2 h after first dose of misoprostol. Bleeding began at a mean of 1.41 h after pain and expulsion at a mean of 6.1 h after first dose of misoprostol. Complete expulsion was confirmed in all women (100%) by ultrasound on day 14. The longest duration of bleeding was 12 days (mean 7.2 days) with 87.5% bleeding for < 10 days. Acceptability was 100% but 70% perceived pain to be moderate and 67.5% bleeding to be light or slightly more than menses. CONCLUSIONS: Medical abortion using three doses of sublingual misoprostol administered 24 h after mifepristone appears to be the most appropriate in terms of pharmacokinetics of the drugs. This pilot study associates the regimen with a short abortion process, which appears to be safe, highly efficacious and acceptable.
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