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Opium can cause extreme sedation that may produce a state of drifting in and out of consciousness. With this comes fleeting dreams, confusion, and other effects that produce something akin to a hallucination. Opium is not, however, a hallucinogen in the technical sense; it is an opiate. Opiates belong to a class of drugs known as central nervous system depressants. Other examples of opiates are codeine and morphine, and there are also semi synthetic opiates such as heroin and oxycodone and fully synthetic opiates such as methadone and buprenorphine.

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9y ago

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