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A telltale sign of being under the influence of heroin or any other opioid is pinpoint pupils (constricted/small). You also commonly see euphoria, decreased respiration, and slowed mental impairment.

A lot of the time too if they are really strung out they will have lesions on there face, lots of little sores or cuts.

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โˆ™ 2007-07-11 02:29:23
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Q: How can you tell when someone is under the influence of heroin?
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