Progesterone tablets or pessaries (Cyclogest, Duphaston)

Progesterone is a hormone secreted by the follicle after the egg is ruptured. This is the hormone which brings about special changes in the lining of the womb increasing the growth and activity of glands. It also relaxes the uterus and its important for the pregnancy to implant. The follicles from where the eggs are collected will secret progesterone as well but since we want the high level of progesterone we give the supplemented medications. Progesterone basically relaxes all smooth muscles of the body, mainly in the abdomen. So while it relaxes the uterine muscles, it also relaxes the colon. It is thus a common complaint that women feel a bit gassy, and constipated once these tablets start.