概述 Siegel于1963年首先报道用孕激素缓慢释放注射剂作为女用避孕药,单用己酸孕酮或与戊酸雌醇合用。目前,注射避孕药仍限于使用甾体激素,即单独孕激素或孕激素与雌激素的复方。其作用类似于口服避孕药, Overview Siegel first reported in 1963 with progestin slow release injection as a female contraceptive, with caproic acid alone or in combination with estradiol valerate. At present, the injection of contraceptives is still limited to the use of steroid hormones, that is, progesterone alone or progestin and estrogen compound. Its role is similar to oral contraceptives,