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A member asked:
Why do pupils dilate when using certain recreational drugs?
A doctor has provided 1 answer
Effect on nerves: Recreational drugs affect the nerves of the autonomic nervous system that controls the pupil function. Many recreational drugs like opiates cause narrowing of the pupils. Withdrawal causes dilation due to return of the nerve function to the opposite direction.
Answered 3/17/2013
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Related Questions
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Does the prescription drug, prucalopride, cause dilated pupils?
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Why are my pupils dilated for no reason if i didn't use drugs or have a serious condition - according to my ophthalmologist; 4 day lapse.
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A member asked:
Why do my pupils dialate for no reason? I don't do drugs and i don't consume any type of alcohol, but my pupils dialate at random. They are usually bigger than they should be and when the light is dimmer you can barely see the color in my eye because of t
2 doctors weighed in across 2 answers
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