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- W2154894171 abstract "A polymeric controlled release vaginal delivery system was developed for 15(S)15-methyl PGF2α methyl ester. This delivery system is a reservoir-type device consisting of laminated membranes that are mounted on an inert holder. The delivery systems were designed to have steady-state release rates of 50 or 100 μg/hr. Included in the study were seven early pregnant (amenorrhea up to 49 days) patients who were treated with 50 μg/hr devices and five early pregnant patients who were treated with 100 μg/hr devices. Three second-trimester cases received a 50 μg/hr device and five received a 100 μg/hr device. Five of the seven early first-trimester patients given 50 μg/hr devices aborted completely. The plasma levels of PG in those patients were 400–600 pg/ml for up to 6 hours. In the two cases that did not abort completely, the plasma levels of drug dropped sharply after both patients had started to bleed vaginally one hour after administration of the device. All five early pregnant patients treated with 100 μg/hr devices aborted completely. None of the three second-trimester cases aborted within 24 hours following administration of the 50 μg/hr devices. Three of the five second-trimester patients aborted within 24 hours following treatment with 100 μg/hr devices. The plasma levels of drug reached 1–1.5 ng/ml during the first 2–5 hours and then declined, especially after rupture of the membranes. The variation of plasma levels of drug following vaginal administration of the devices in different individuals was considerably less than following vaginal suppositories. Therefore, this device seems to be close to an ideal delivery system for vaginal administration of abortifacients." @default.
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- W2154894171 date "1983-02-01" @default.
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- W2154894171 title "Menses induction and second-trimester pregnancy termination using a polymeric controlled release vaginal delivery system containing (15S)15-methyl PGF2α methyl ester" @default.
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- W2154894171 doi "https://doi.org/10.1016/0010-7824(83)90085-9" @default.
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