Oxytocin was isolated and synthesized for the first time by Vincent du Vigneaud in 1953, work for which he received two years later, the Nobel Prize in Chemistry. Since then, it has been one of the research fields to the scientific community. This neuropeptide has many roles and functions in our system that have not been discovered yet, but within those who are known, we have uterine contractions and milk ejection. Recently, it has been discovered that oxytocin could also work as a buffer for the stress hormones during labour, as a regulator of some genes expression within the myometrium...