Pitocin
Pitocin is the synthetic form of oxytocin.
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Oxytocin
Oxytocin (Oxt) is a hormone that is released into the bloodstream in response to stretching of the cervix and uterus during labor and with stimulation of the nipples from breastfeeding. As a medication, it is used to cause contraction of the uterus in order to start labor or increase the speed of labor, and to stop bleeding following delivery. For this purpose, it is given either by injection into a muscle or into a vein.
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Hormone
A hormone is any member of a class of signaling molecules produced by glands that are transported by the circulatory system to target distant organs to regulate physiology and behavior. The most commonly mentioned hormones in pregnancy are Human chorionic gonadotropin (hCG), Progesterone, Estrogen, Relaxin, and Oxytocin.