Opioid antagonists are morphine-like substances which can be used to block the effect of endorphins in the central nervous system.
Naltrexone is an opioid antagonist used to treat conditions such as alcohol dependence and opioid dependence.
Some people believe that naltrexone can also be used with some individuals with autism spectrum disorders to reduce behaviours such as self injury, hyperactivity and ritualistic behaviour.
This glossary is designed to explain some of the jargon and gobbledygook used by some people when they talk about autism or research..
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The fact that an intervention is listed in this glossary does not necessarily mean that we agree with its use. Nor does it necessarily mean that there is any scientifically valid or reliable evidence behind it.