Cross Reactions

Common Medications That Can Cause False Positives

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Generic Medication Name

Medication Brands

Tests Positive For

Acetaminophen with Codeine

Tylenol 3, Tylenol with codeine

Opiates (MOR, OPI)

Alobarbital

Barbituates (BAR)

Alphenol

Barbituates (BAR)

Alprazolam

Xanax

Benzodiazepines (BZO)

Amitriptyline

Elavil, Lentizol, Triptafen, Triptafen-M, Tryptizol

Tricyclic Antidepressants (TCA)

Amobarbital

Amytal, Tuinal

Barbituates (BAR)

Amphetamine/Methamphetamine

AMP: Adderall, Dexedrine, Benzedrine
M/AMP: Desoxyn, Didrex Eldepryl

Amphetamines/Methamphetamines

Aprobarbital

Barbituates (BAR)

Barbital

Barbituates (BAR)

Benzydamine

Difflam

Benzodiazepines (BZO 200 ng/mL)

Bromazepam

Lexotan

Benzodiazepines (BZO)

Benzodiazephines

Oxaprozin, Sertraline

Buprenorphine

Suboxone, Subutex, Temgesic

Buprenorphine (BUP)

Butabarbital

Butisol, Sonaryl

Barbituates (BAR)

Butalbital

Fioricet, Fiorinal

Barbituates (BAR)

Butethal

Barbituates (BAR)

Chlorazepate

Tranxene

Benzodiazepines (BZO)

Chlordiazepoxide

Librium

Benzodiazepines (BZO)

Clobazam

Frisium

Benzodiazepines (BZO)

Clonazepam

Clonopin, Klonopin, Rivotril

Benzodiazepines (BZO)

Codeine Phosphate

Codafen, Continus, Codeine Linctus, Galcodine, Kapake, Migraleve, Pediatric BP, Solpadol, Tylex

Opiates (MOR, OPI)

Cyclobenazprine

Flexeril

Tricyclic Antidepressants (TCA)

Cyprohetadine

Periactin

Tricyclic Antidepressants (TCA)

Delorazepam

Briantum

Benzodiazepines (BZO)

Dexamphetamine Sulphate

Adderall, Adderall XR, Dexedrine

Amphetamine (AMP)

Dextropropoxyphene

Co-proximal, Darvocet, Darvon

Propoxyphene (PPX)

Diazepam

Diazemuls, Stesolid, Valclair, Valium

Benzodiazepines (BZO)

Dihydrocodeine

DHC Continus, Paramol, Remedeine, Remedeine Forte

Opiates (MOR, OPI)

d-Methamphetamine HCL

Desoxyn, Methamprex, Methedrine

Methamphetamine (mAMP)

Dothiepin

Prothiaden

Tricyclic Antidepressants (TCA)

Doxepin

Sinequan, Xepin

Tricyclic Antidepressants (TCA)

Doxylamine

Nyquil

Methadone (MTD)

Duloxetine

Ariclaim, Xeristar, Yentreve, Duzela, Dulane, Cymbalta, Cymgen

Cocaine (COC)

Efavirenz

Sustiva

Cannabinoids (THC)

Estazolam

ProSom

Benzodiazepines (BZO)

Ethylmorphine

Opiates (MOR, OPI)

Flunitrazepam

Rohypnol

Benzodiazepines (BZO)

Halazepam

Alapryl, Pacinone, Paxipam

Benzodiazepines (BZO)

Hydrocodone

Loratab, Lorcet, Vicodin

Opiates (MOR, OPI), Oxycodone (OXY)

Hydromoprhone

Dilaudid, Hydrostat

Opiates (MOR, OPI), Oxycodone (OXY)

Koalin and Morphine Mixture

Diocalm, Entersan, Opazimes

Opiates (MOR, OPI)

I-Methampetamine HCL

Vick's Inhaler

Methamphetamine (mAMP)

Lofepramine

Gamanil, Zestoretic

Tricyclic Antidepressants (TCA)

Lamotrigine

Lamitcal

PCP

Lorazepam

Ativan

Benzodiazepines (BZO)

Lormetazepam

Noctamide

Benzodiazepines (BZO)

Medazepam

Anxitol, Lerisum, Medacepan, Nobritol, Nobrium

Benzodiazepines (BZO)

Methadone Hydrochloride

Dolophine, Methadose, Physetone

Methadone (MTD)

Methylenedioxyamphetamine (MDA)

Eve (slang), Love Drug (Slang)

Amphetamine (AMP), Ecstasy (MDMA)

Methylenedioxymethamphetamine (MDMA)

Adam (slang), E (slang), Ecstasy (slang) XTC (slang)

Methamphetamine (mAMP), Ecstasy (MDMA)

Morphine

Astramorph, Cyclimoprh, Duramorph, Morcap, Morphine Sulfate, MS Contin, Oramorph, Roxanol, Severedol

Opiates (MOR, OPI)

Nitrazepam

Mogadon, Somnite

Benzodiazepines (BZO)

Oxycodone

Oxycontin, Percodan, Roxicet

Oxycodone

Oxazepam

Ox-pam, Serax

Benzodiazepines (BZO)

Paracetamol (Acetaminophen)/Codeine Preparations

Co-codamol, Codafen, Co-dydramol, Kapake, Remedine, Solpadol, Tylenol 3, Tylex

Opiates (MOR, OPI)

Pentobarbital

Nembutal

Barbituates (BAR)

Phencylidine

PCP

Thioridazine, Chlorpromazine, Doxylamine, Lamotrigine

Phenobarbital

Donnatal

Barbituates (BAR)

Phenobarbitone

Luminal

Barbituates (BAR)

Phenytoin

Dilantin, Epanutin, Epitard

Barbituates (BAR)

Pholcodine

Galenphol, Pavacol-D, Strong BP, Thebacon

Opiates (MOR, OPI)

Prazepam

Centrax, Demetrin

Benzodiazepines (BZO)

Promethazine

Allerfen, Anergan, Antinaus, Aprobit, Avomine, Baymethzine, Diprozin, Fenergan, Methazine, Pamagren 100, Phenergen

Tricyclic Antidepressants (TCA)

Pseudoephedrine

Afrinol, Sudafed, Tylenol Cold

AMP/M-AMP

Ranitidine

Pylorid, Zantac

Methamphetamine (M-AMP)

Secobarbital

Seconal

Barbituates (BAR)

Sertaline

Zoloft

Benzodiazepines (BZO)

Temazepam

Restoril

Benzodiazepines (BZO)

Triazolam

Halcion

Benzodiazepines (BZO)

Venlafaxine

Effexor, Effexor XL

Phencyclidine (PCP)