False positives are common with drug screens, for example a person taking Ibuprofen or some gastric medication may falsely detect a positive for THC. However, using the GS/MS can clearly and accurately identify THC.
Some common false positives with drug screens include:
- Marijuana -for OTC NSAIDs (Ibuprofen, Advil, Pamprin etc.)
- Amphetamines - for OTC medications such as: Nyquil, Sudafed, Tylenol Sinus Gelcaps, Vicks Inhaler, etc.
- Cocaine - Rx Amoxicillin
- Opiates - Poppy seeds, Emprin, Tylenol with codeine, Rx Vicodin, Percodan, etc.
- Barbiturates - Fiorinall for headaches or Phenobarbital, Dilantin
- Benzodiazepines - most Rx anxiety medications and Rx sleeping pills
** With confirmatory drug testing there are no false positives, so an employer can truly hire with confidence.