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甾体避孕药制成的混悬剂,称为“库”型制剂,能达到缓慢释放的目的,其释放率与甾体结晶大小有关。本文报道复方18-甲基炔诺酮注射剂不
Steroidal contraceptives made of suspension, known as the “library” type of preparation, to achieve the purpose of slow release, the release rate and steroid crystal size. This article reports the compound 18-norgestrel injection does not