India banned imports of the hormone oxytocin to stop its misuse in the livestock industry, where activists say it causes hormonal imbalances and shortens the lives of milch animals. Oxytocin is released naturally in human bonding activities such as sex, childbirth, and breastfeeding. The government has decided to rely on domestic production to satisfy requirements of the hormone, the Central Board of Excise and Customs added, ordering an immediate ban on imports, whether for human or animal use. The sale is limited to registered government hospitals and clinics, a bar code system used on all forms of the drug to ensure tracking and prevent abuse.