Will sudafed pe and loratadine show positive for methamphetamine?

Sudafed PE (which contains phenylephrine) and loratadine are unlikely to show a positive test for methamphetamine. Methamphetamine tests typically detect the presence of methamphetamine or its metabolites, which are not found in either of these medications. However, certain formulations of pseudoephedrine (found in other Sudafed products) can potentially cause false positives, but this is not the case with Sudafed PE. Always consult with a healthcare professional if you have concerns about medication interactions or drug testing.