Learn about substance use disorder and dependence, including causes, symptoms, diagnosis, and treatment.
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Genetics can play a part in whether you have problems with alcohol. But many other factors also have an influence. Here's what you should know.
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Three kinds of prescription medicines are potentially addictive: opioids, tranquilizers, and stimulants. Here's what you should know.
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Knowing about marijuana can help you tell if your child or someone else is using it, and help them to get treatment.
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Cocaine use ranges from once in a while to nonstop. There is no safe way to use the drug.
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