Accurate drug test results will help you make the right decision about an employee’s future with your company, but unfortunately testing results are not always black and white. Whether you’re an employer scheduling drug testing or an employee preparing to be tested, it’s important to understand how a false positive might occur and take precautions to prevent inaccurate testing. Today we’re exploring two factors that can have an impact on the levels of drug screen results: hydration and certain medications.
Levels of Drug Screen Results
- Quinolones (ofloxacin and gatifloxacin)
- A nonprescription nasal inhaler
It’s possible that you could be taking one of these drugs without knowing it because you call it by its generic name. For example, Robitussin, Delsym, and other over-the-counter cough suppressants contain dextromethorphan. In addition, Bupropion’s generic name is Wellbutrin.
Other medications not mentioned above can also trigger a false positive – like Methylphenidate, more commonly known as Ritalin. This is why it’s beneficial to err on the side of over-communicating with your drug testing site. If you don’t feel comfortable telling your employer about certain prescription medications you’re taking, you can always tell the specimen collector at the drug testing site. In some cases, the medication won’t cause a false positive.