Originally Posted by Sabio
That's why estrogen should not be given for lactating mothers as a form of contraception. You can give only progesterone and you can begin progesterone immediately after birth because it does not block the prolactin receptors.
In kaplan physio notes page 474 2007 version, it says estrogens AND progesterone block milk synthesis?
Also, FA correction: FA p482 - Pregnancy - Lactation is induced by a "decrease in maternal progesterone" in the presence of high prolactin levels rather than a "decrease in maternal steroids."