Serum medroxyprogesterone acetate (MPA) and estradiol levels following Lunelle injection. (Reproduced with permission from Rahimy MH, Ryan KK, Hopkins NK. Lunelle monthly contraceptive injection (medroxyprogesterone acetate and estradiol cypionate injectable suspension): steady-state pharmacokinetics of MPA and E2 in surgically sterile women. Contraception. 1999 Oct;60(4): 209-214.) Source: Female Reproductive Endocrinology and Infertility, Greenspan's Basic & Clinical Endocrinology, 10e Citation: Gardner DG, Shoback D. Greenspan's Basic & Clinical Endocrinology, 10e; 2017 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/2178/gardgreen10_ch13_f023-1.png&sec=166251073&BookID=2178&ChapterSecID=166250715&imagename= Accessed: October 26, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved