<unk>  F2α<unk>  in prostanoid nomenclature), pharmaceutically termed dinoprost (INN), is a naturally occurring<unk>  used in medicine to induce labor and as an abortifacient.
In domestic mammals, it is produced by the uterus when stimulated by oxytocin, in the event that there has been no implantation during the follicular phase.  It acts on the corpus luteum to cause luteolysis, forming a corpus albicans and stopping the production of progesterone.  Action of<unk>  is dependent on the number of receptors on the corpus luteum membrane.
The<unk>  isoform 8-iso-PGF2α was found in significantly increased amounts in patients with endometriosis, thus being a potential causative link in endometriosis-associated oxidative stress.
Prostaglandin F2alpha
Thromboxane
Leukotriene
Prostacyclin
Nitric oxide
Pentostatin
Angiotensin II 
Alpha-1 proteinase inhibitor