Are there any drugs that can cause a false positive?

Are there any drugs that can cause a false positive?

All of the following medications have documented cases of causing a false positive for either amphetamine or methamphetamine: False positives on drug tests are unfortunately fairly common.

What can cause a false positive urine test for LSD?

This is a tricyclic antidepressant used for chronic pain, neuropathy (nerve pain), depression, and migraine prevention. Amitriptyline may lead to a false positive urine test for the hallucinogenic drug LSD (lysergic acid diethylamide).

What can cause a false positive for meth?

According to GoodRx the following may cause a false positive test for meth. This list includes other drugs besides meth. Amitriptyline. This is a tricyclic antidepressant used for chronic pain, neuropathy (nerve pain), depression, and migraine prevention.

Are there any false positives in urine testing?

False positives in urine testing do happen from time to time, and must be followed up with pathology confirmation testing via gas chromatography/mass spectrometry (GC/MS). This will take away any chance of a false result.

What can cause a false positive on a drug test?

Undoubtedly, one of the main causes of a false positive drug test is using other medications. Some of those most indicated in false positive readings are over the counter cough and cold syrups, decongestants , and over the counter nasal sprays.

What can cause false positive for barbiturates?

The most common medicine to cause a false positive test for barbiturates are anti-inflammatory medicines, such as ibuprofen or naproxen. It also has been reported with Dilantin.

What drugs cause false positive for methamphetamine?

Any medication that includes one of these ingredients could cause a false-positive for a methamphetamine drug test. Common medications with these ingredients are cold medicines and nasal decongestants , such as Sudafed, NyQuil, Vick’s Inhaler and Dimetapp.

What drugs cause false positive for amphetamines?

Some more commonly prescribed prescription medicines that may cause a false positive reading for amphetamines include: Amantadine, Bupropion, Chlorpromazine, Desipramine, Dextroamphetamine, Ephedrine, labetalol, Methamphetamine, Methylphenidate , Phentermine , Phenylephrine , Promethazine, Pseudoephedrine , Ranitidine , Selegiline ,…