Intramuscular administration of 15-methyl prostaglandin F2alpha in mid-trimester termination of pregnancy.

15-methyl prostaglandin F2 alpha was administered by intramuscular injection to thirty patients to terminate pregnancy in the mid-trimester. Termination was considered successful if this occurred within 24 hours and this was so in twenty-seven cases (90%). There were no serious complications. prochlorperazine mesylate and diphenoxylate hydrochloride reduced the incidence and severity of vomiting and diarrhoea.