The autonomic nervous system is the part of the nervous system that controls muscles of internal organs (such as the heart, blood vessels, lungs, stomach, and intestines) and glands (such as salivary glands and sweat glands).
Naltrexone is also used to reduce cravings for alcohol. Scientists are unsure how it works in relation to alcohol but it has been shown to reduce desire and cravings by blocking the same receptors that create feelings of pleasure when opioids are taken.
What is naltrexone? Naltrexone is a prescription drug. It belongs to a group of drugs known as opioid antagonists. These block the effects of heroin and other opioid drugs. Naltrexone is used in pharmacotherapy, in which a drug of dependence is replaced with a prescribed drug. Pharmacotherapy helps to stabilise peopleâs lives and reduce the harms related to drug use. 1