Gynaecology & Obstetrics Miscellaneous (Gynae) 138e4f06 Half life of IV oxytocin is - A 3 minutes B 30 minutes C 3 hours D 45-60 minutes High-Yield Explanation Ans. is 'a' i.e., 3 minutes * The half-life of intravenously infused oxytocin is approximately 3 minutes.