I failed a urine test for cannibiniods but no T.H.C. and i was takeing amoxicillin and prednizone and ibuprofin for a abbsest tooth . could this have had an effect ?
Can amoxicillin cause a false positive for cannibis on a urine test ?
- Asked
- 22 Apr 2012 by kevin1958
- Updated
- 22 Apr 2012
- Topics
- amoxicillin, urine test, urine
Responses (1)
Unfortunately, many people have false positives for meds they didn't take and false negative for meds they did take. Drug test kits themselves can be faulty, and human that them can make mistakes. The medication, omeperazole is listed as one that can give a false positive for pot. Ask to be retested or have your sample mailed to a lab, where the results should be more accurate. Patti.

Further Information
- Amoxicillin Information for Consumers
- Amoxicillin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Amoxicillin (detailed)
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