Use of different prostaglandin analogues for terminating pregnancy at different terms.

The abortifacient effect has been compared of 15 me-PGF2 alpha, ONO 802 and 16 phenoxy-w-17,18,19,20-tetranor PGE2 given intra-muscularly, intravaginally and with or without laminaria dilatation of the cervix. Locally administered, 15 me-PGF2 alpha, proved to be more efficient than ONO 802. Laminaria had a beneficial effect on dilatation. Intramuscular administration involved the necessity of frequent injections and gastrointestinal side effects. A total of 143 patients participated in the study.