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Propranolol is a type of drug called β-adrenergic antagonists (beta blockers), and is sold under various brand names including Inderal and InnoPran. 

Propranolol is used to treat a range of conditions including high blood pressure, abnormal heart rhythms, heart disease, pheochromocytoma, and certain types of tremor. It is also used to prevent angina and migraine headaches.

Propranolol is also used to improve survival after a heart attack. Propranolol works by works by relaxing blood vessels and slowing heart rate to improve blood flow and decrease blood pressure. Propranolol has been shown to be effective in helping some individuals solve simple problems

Because of this some researchers believe it can also be used to help some people with autism to do the same.

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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.