Hello Lisagarmaise, Serotonin is to blame! Excessive release of 5HT(serotonin) from intestinal mucosa cells can cause diarrhea and nausea. Metformin stimulates these intestinal cells to produce increased levels of 5HT, as soon as 10-15 minutes after taking metformin. The good news is that most symptoms dissapear after taking metformin for 2-3 weeks.
Progesterone, hormone secreted by the female reproductive system that functions mainly to regulate the condition of the inner lining (endometrium) of the uterus. Progesterone is produced by the ovaries, placenta, and adrenal glands.
2. Hormonal secretions (hormones that affect other hormones): Hormones also influence the release of other hormones. The hypothalamus makes and secretes hormones that act on the pituitary gland to promote or inhibit its secretion of other hormones.. Hormonal secretions (hormones that affect other hormones): Hormones also influence the release of other hormones. The hypothalamus makes and secretes hormones that act on the pituitary gland to promote or inhibit its secretion of other hormones.