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The etonogestrel implant (Nexplanon) is a single-rod progestin contraceptive placed under the skin of the inner upper arm that provides up to 3 years of reversible contraception. The implant is a 40- × 2-mm semirigid ethylene vinyl acetate rod containing 68 mg of etonogestrel (the 3-keto derivative of desogestrel). Contraceptive effectiveness is equal to or greater than that of most sterilization procedures.
Reversible contraception. The US Food and Drug Administration and the device’s manufacturer have agreed that the device will be distributed only to providers who have undergone 3 hours of training in patient selection, counseling, insertion, and removal.
Uncertainty about contraceptive plans, known or suspected pregnancy, undiagnosed abnormal uterine bleeding, local skin infection, current or past history of thrombosis or thromboembolic disorders, liver tumors (benign or malignant) or active liver disease, known or suspected breast cancer, other contraindications to hormonal contraception (eg, stroke, ischemic heart disease).
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