Clinical experience with the recently developed progestogens.

Abstract

The third generation of combination estrogen/progestogen oral contraceptives (OCs) first became available in the early 1980s. The gonanes (e.g., norgestimate, desogestrel, and gestodene) are alternatives to the long-standing progestogens, norethindrone and norgestrel/levonorgestrel. While the newer compounds are related to levonorgestrel, their biochemical… (More)

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