Relative Cost Effectiveness of Depo-Provera??, Implanon??, and Mirena?? in Reversible Long-Term Hormonal Contraception in the UK
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Keywords:
Etonogestrel
Levonorgestrel
Long-Acting Reversible Contraception
Contraceptive implant
Desogestrel
Hormonal contraception
Intrauterine device
Etonogestrel
Contraceptive implant
Medical abortion
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Desogestrel
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Desogestrel
Contraceptive implant
Levonorgestrel
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Liver function
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Desogestrel
Etonogestrel
Hormonal contraception
Norethisterone
Male contraceptive
Gestodene
Medroxyprogesterone
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Etonogestrel
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Etonogestrel
Hormonal contraception
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To evaluate clinical information on Implanon as a long-term method of contraception and, specifically, to review the efficacy and adverse effect profile of Implanon.A MEDLINE search (from 1966 through June 1999) was performed to retrieve primary and review articles. The search was limited to data on human subjects. Some references were identified through secondary sources.Pharmacokinetic and pharmacodynamic studies, and clinical trials assessing the efficacy and safety of desogestrel implants were reviewed. Relevancy and consistency of information was assessed for each trial.Implanon is the newest contraceptive implant system that has completed worldwide Phase III clinical trials. It is a single rod that contains a core of 68 mg of 3-keto-desogestrel with a membrane of ethylene vinyl acetate. Inhibition of ovulation occurs within one day of implantation, and effective contraception lasts for three years. Fertility returns within one month after implant removal. Insertion and removal by trained medical professionals is simple, and only minor complications have been documented. Adverse effects are mild and primarily consist of abnormal bleeding, weight gain, acne, breast pain, and headache.The data on Implanon indicate that it provides effective long-term contraception with limited adverse effects. It appears to be a good addition to the currently available contraceptives.
Desogestrel
Contraceptive implant
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Desogestrel
Etonogestrel
Gestodene
Ethinylestradiol
Contraceptive implant
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