In depth review of drugs that cause false positives
Amphetamine/Methamphetamine
The active chemical of some medication will be metabolised to amphetamine, this will cause positive amphetamine/methamphetamine test results. Eg Adderall contains a mixed amphetamine salt widely prescribed as a psycho-stimulant medication for attention deficit hyperactive disorder, or ADHD, or ADD, and use of such medication would cause a positive amphetamine test.
In 2002 the Food and Drug Administration in the USA approved eye drops which contained hydroxyamphetamine and tropicamide. Although amphetamine is metabolised to hydroxyamphetamine, hydroxyamphetamine is not metabolised to amphetamine. Therefore, use of such products should not cause a positive (non-negative) amphetamine test result.
Drugs that may cause false positive to amphetamines include,
Diet pills (Amfepramone, Amphetaminil, Clobenzorex, Benzphetamine, Fenfluramine, Fenproporex, Mefenorex, Obetrol, Phentermine)
Attention deficit disorder medication (Ritalin, Dextroamphetamine, Adderall, Benzedrine, Pemoline, Pemoline)
Cold medication (pseudoephedrine (old sudafed), Vick’s Inhaler, Promethazine, Allerest, Bromphenlramlne, Dimetapp (loratadine), Efidac, Phenylephrine, Sinarest)
Antidepressants (Bupropion, Fluoxetine)
Blood pressure tablets (Labetalol)
Asthma medication (Inhalers, Ephedrine, Primatene-M, Tedral)
Antidepressants (Wellbutrin, Desipramine, Selegiline, Trazodone)
Parkinson’s disease medication (Amantadine, Deprenyl, Eldepryl)
Malaria treatment (Chloroquine)
Schizophrenia Medication (Chlorpromazine, Fluspirilene, Quetiapine)
Anti-inflammatory (Famprofazone)
Eye drops with Pholedrine
High blood pressure medicine (Labetalol, Procainamide)
Antihistamine (Mepyramine, Phenegan-D)
Gastroesophageal reflux disease medication (Ranitidine)