A female asked:
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i understand that heroin is detectable in urine up to 4days after use but if narcan is introduce to the system will it decrease detection time?

2 doctor answers
Dr. Robert Wilson
45 years experience Addiction Medicine
No: Narcan blocks opiates such as heroin at receptor sites in the brain but does not effect urine screening. If you are trying to avoid a positive uds for heroin, the best way is to abstain :). If this is a problem seek professional help. Heroin kills.
Answered on Nov 19, 2018
Dr. Heidi Fowler
24 years experience Psychiatry
No: My understanding is that Naloxone can be tested for.It will not negate a UDS.
Answered on Nov 16, 2018

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