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  • Title: Midtrimester abortion with intravenous administration of 15 methyl prostaglandin F2 alpha.
    Author: Mapa MK, Kochhar U, Raghavan KS, Devi PK.
    Journal: Int J Gynaecol Obstet; 1982 Apr; 20(2):125-8. PubMed ID: 6125431.
    Abstract:
    In a trial of 71 women, 15(S) 15 methyl PGF2 alpha was administered intravenously at the dose level of 1 microgram/min for termination of pregnancy of between 11 weeks and 20 weeks of gestation. Sixty-one subjects (85.9%) aborted within 30 h of administration of the drug. The mean induction abortion interval was 15.65 h. The mean number of episodes of vomiting and diarrhea was 0.9 and 0.6, respectively. The effectiveness of the method is comparable to that of intramuscular method of administration, but the side effects are much less in comparison. A group of 71 women between 11-20 weeks of gestation who desired termination of pregnancy and had no contraindications for prostaglandin (PG) administration were given complete physical and gynecological examinations; hemoglobin was estimated and urinalysis was done. They were then given orally 2 tablets of Lomotil (diphenoxylate HCl 2.5 mg + atropine sulphate 0.025 mg) and 1 tablet of Stemetil (Prochlorperazine 5 mg). They were then given 15 (S) 15 methyl PGF2alpha intravenously at the dose level of 1 mcg/min. 61 subjects (85.9%) aborted within 30 hours. At regular intervals pulse rate, blood pressure, uterine pain, nausea, vomiting, diarrhea, temperature, and respiratory rate were measured and any other side effects were recorded. The mean induction abortion interval was 15.65 hours, the mean number of episodes of vomiting and diarrhea was 0.9 and 0.6 respectively. This study compared well with the intramuscular route of administration with a higher rate of complete abortions and lower rate of side effects. The latter is explained on the basis of smaller amounts of the drug being infused at a slower rate. Disadvantages include confinement to bed, discomfort, and need of constant supervision. Compared with intraamniotic and extraamniotic case studies, the latter are invasive procedures while the intravenous method is not. Also, the intravenous route allows for adjusted drug dosage and stopping the procedure in the event of an undesirable reaction.
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