Methamphetamine False Positive Tests?

Answer

The most common cause for drug tests that produce false positives for methamphetamine is medication. There are several different types of prescription and over the counter medications that can cause a positive drug test result. These drugs include ephedrine, thorazine, Sudafed, and Ritalin. Anyone that has taken any prescription medication that causes a false positive should bring a copy of the prescription when being tested so that further screening can be performed to rule out any illegal drugs.
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Some medications that can cause a false-positive on a drug test for methamphetamine are ephedrine, pseudoephedrine and propylephedrine. Other drugs are phenylephrine ...
None, the chemical test for methamphetamine is very specific. The primary cause of false positives in methamphetamine testing is impure drugs. Almost all Ecstasy ...
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