L<nowiki>'</nowiki>'''Ornipressinaornipressina''' è un [[vasocostrittore]]<ref>{{cite journal |title=Dose-response relation of ornipressin with regard to vasoconstriction in human skin |author=H. Fruhstofer, M.D., M. Heisler, M.D. |journal=Br. J. Anaesth. |year=1994 |volume=73 |issue=2 |pages=220–224 |doi=10.1093/bja/73.2.220 |url=http://bja.oxfordjournals.org/content/73/2/220.abstract}}</ref><ref>{{cite journal |title=Ornipressin (Por 8): An Efficient Alternative to Counteract Hypotension During Combined General/Epidural Anesthesia |author=Marc De Kock, MD, Pierre-Francois Laterre, MD, Patricia Andruetto, MD, Lionel Vanderessen, MD, Sylvie Dekrom, MD, Bernard Vanderick, MD and Patricia Lavand’homme, MD |journal=Anesthesia & Analgesia |year=June 2000 |volume=90 |issue=6 |pages=1301–1307 |url=http://www.anesthesia-analgesia.org/content/90/6/1301.short |doi=10.1097/00000539-200006000-00008}}</ref> e antiemorragico.
