The Medical Letter on Drugs and Therapeutics
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839
March 8, 1991
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A Subdermal Progestin Implant For Long-Term Contraception
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A Subdermal Progestin Implant For Long-Term Contraception
March 8, 1991 (Issue: 839)
The Norplant System (Wyeth-Ayerst) for subdermal delivery of the synthetic progestin levonorgestrel was recently approved by the US Food and Drug Administration for use as a long-term contraceptive.
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