Does Sulfamethoxazole Cause False Positive Test Result For Benzodiazepines?

Posted on Thu, 25 Aug 2016

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Thu, 25 Aug 2016 Answered on

Fri, 16 Sep 2016 Last reviewed on

Question : Can “Sulfamethoxazole" make you test positive for a benzo

Answered by Dr. Alexander H. Sheppe (5 minutes later)

Brief Answer:
Consultation

Detailed Answer:
Hello, and thanks for your question.

Modern urine drug screening is not susceptible to errors like this. Sulfamethoxazole will not cause a false positive on a modern urine drug test.

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Above answer was peer-reviewed by : Dr. Vaishalee Punj