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.
The posterior pituitary. receives and releases hormones from the hypothalamus. The Anterior Pituitary Gland. The anterior pituitary. produces a variety of hormones under stimulation from. hypothalamic releasing hormones. 56.4 Endocrine glands secrete hormones that regulate. many body functions.