Many employers do random drug screenings, and some schools have also begun screening students. There are a few things to consider before you allow someone to give you a drug screen. There are some substances that may cause a false-positive drug screen even if you haven't used any illegal drugs.
Simple Substances
Tell the person giving you a drug test if you've taken ibuprofen or any type of cold remedy. Ibuprofen may cause a false positive result for marijuana test.
A decongestant or cold medicine may also lead to a false positive drug screen. Ephedrine and phenylpropanolamine are found in many over-the-counter cold medications and may give a false positive result for amphetamines. Dextromethorphan and perylamine, which are found in cough suppressants, may show up as opiates.
Prescription Precautions
Ask your doctor for written confirmation if you're taking certain medications that will give you a false positive drug screening, such as diazepam, which can show positive for PCP.
Anti-depressants that contain amitriptyline may show up as opiates up to three days after stopping the medication.
Some antibiotics, such as amoxicillin and ampicillin may show up as cocaine use on a drug test.
Many pain relievers contain codeine, which may give a false positive result for heroine or morphine.
Tasty Treats
Be careful about consuming poppy seeds prior to a drug test. Poppy seeds are common ingredients in muffins, breads and other foods. They could show a false positive result for opiates.
Medical Mix Up
Investigate further if you believe your drug screen is false positive. There are times when there may be a lab error, paperwork mix up or other reasons that may be beyond your control.
Treatments Testing Positive
If you Take DHEA as a treatment for AIDS, it may cause a false positive result for anabolic steroids.
Tags: false positive, false positive result, positive result, drug screen, drug test