Oxitis Injection 1 ml is used for initiating or improving uterine contraction (antepartum) and producing uterine contraction during the third stage of labour (postpartum). Besides this, it also controls postpartum bleeding or haemorrhage after childbirth. It contains a synthetic female hormone, Oxytocin, which stimulates uterine muscles and increases the uterus contractions. It also increases the production of a natural substance called prostaglandins (PGs), increasing contractions and hence inducing labour. As a result, these increased uterine contractions help deliver the child. It may cause common side effects such as nausea, vomiting, and headache. Before taking this medicine, you should tell your doctor if you are allergic to any of its components and about all the medications you are taking and pre-existing medical conditions.