Can Fexofenadine Make You Fail a Drug Test? Unpacking False Positives
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4 min read
According to a 2023 case study published in the journal *Case Reports in Emergency Medicine*, the use of fexofenadine has been associated with false-positive results for tramadol on urine immunoassay screens. This highlights that while unlikely for most standard panels, the answer to 'Can fexofenadine make you fail a drug test?' is not a simple 'no' and depends heavily on the specific test and substance being screened.
