Commonly Prescribed Medications and their Interactions with Immunoassay and Confirmation Testing
| Drug Name | Category | Immunoassay Testing | Confirmation Testing |
| Adderall | Stimulant | Amphetamines Class | Amphetamine Only |
| Alprenolol | Beta-Blocker | None | None |
| Ambien | Sedative | None | None |
| Ativan | Sedative-Hynotic | Negative | Lorazepam |
| Chlordiazepoxide | Sedative-Hynotic | Benzodiazepines Class | Nordiazepam / Oxazepam |
| Clonapin | Sedative-Hynotic | Benzodiazepines Class | Clonazepam |
| Desoxyn | Stimulant | Amphetamines Class | Methamphetamine |
| Fioricet w/Codeine | Sedative-Anagestic | Barbiturates Class and Opiates Class | Butalbital Codeine/Morphine |
| Gabapentin | Anticonvulsant | None | None |
| Kadian | Narcotic Analgesic | Opiates Class | Morphine |
| Lorcet | Narcotic Analgesic | Opiates Class | Hydrocodone / Hydromorphone |
| Lortab | Narcotic Analgesic | Opiates Class | Hydrocodone / Hydromorphone |
| MS Contin | Narcotic Analgesic | Opiates Class | Morphine |
| Nalorphine | Opioid Agonist /Antagonist Analgesic | Opiates Class | None |
| Norco | Narcotic Analgesic | Opiates Class | Hydrocodone / Hydromorphone |
| Opana | Narcotic Analgesic | Oxycodone Class | Oxymorphone |
| Oxycontin | Narcotic Analgesic | Oxycodone Class | Oxycodone / Oxymorphone |
| Percocet | Narcotic Analgesic | Oxycodone Class | Oxycodone / Oxymorphone |
| Pseudoephedrine | Stimulant | Amphetamines Class**High Amounts Needed | None |
| Ranitidine | Histamine-2 Blocker | Amphetamines Class and/or Opiates | None |
| Restoril | Sedative-Hynotic | Benzodiazepines Class | Temazepam, Oxazepam |
| Ritalin | Stimulant | Opiates Class | None |
| Serax | Sedative-Hynotic | Benzodiazepines Class | Oxazepam |
| Tylenol w/Codeine Tylenol 1, 2, 3, 4 | Narcotic Analgesic | Codeine/Morphine | |
| Ultram | Analgesic | Buprenorphine Class, Methadone Class, Opiates Class, and/or PCP Class | Tramadol |
| Valium | Sedative-Hynotic | Benzodiazepines Class | Nordiazepam, Temazepam, Oxazepam |
| Vicodin | Narcotic Analgesic | Opitates Class | Hydrocodone / Hydromorphone |
| Wellbutrin | Antidepressant | None | None |
| Xanax | Sedative-Hynotic | Benzodiazepines Class | Alprazolam |
| Zyrtec | Antihistamine | None | None |