The relevant hormone determining results show: Prolactin (PRL), estradiol (E2) and progesterone (P) content in serum have regularly changed during reproductive and nonreproductive phase.

相关激素测定的结果表明：血清中垂体泌乳素(PRL)、雌二醇(E2)(P)含量在生殖期生殖期呈现规律。

Approved by the FDA in 2001, the patch is sold by prescription and releases ethinyl estradiol (a type of estrogen), and a progestin called norelgestromin via the skin into the bloodstream.

FDA在2001年就已经证实，这种通过渗透皮肤来释放雌激素激素的贴膜是一种处方类药物。