549 ARTICLES · UPDATED WEEKLY

Noticias

Field guides, regulatory updates, and product breakdowns from the team behind American Screening Corporation's drug testing supplies.

More from the lab notebook

Page 9 of 46
Does Phenytoin Cause a False Positive Drug Test? Dilantin and Barbiturate Screens

Oct 16, 2026 ·8 min read

Does Phenytoin Cause a False Positive Drug Test? Dilantin and Barbiturate Screens

Phenytoin, sold under the brand name Dilantin, is a hydantoin anticonvulsant used to control seizures. It is not a controlled substance and it is...

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Does Paxil Cause a False Positive Drug Test? Paroxetine and Panel Screens

Oct 16, 2026 ·7 min read

Does Paxil Cause a False Positive Drug Test? Paroxetine and Panel Screens

Paxil is the brand name for paroxetine, a selective serotonin reuptake inhibitor (SSRI) prescribed for major depressive disorder, obsessive compulsive disorder, panic disorder, social...

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Does Mounjaro Show Up on a Drug Test? Tirzepatide and Workplace Panels

Oct 16, 2026 ·7 min read

Does Mounjaro Show Up on a Drug Test? Tirzepatide and Workplace Panels

Mounjaro is the brand name for tirzepatide, an injectable medication approved for type 2 diabetes that is also prescribed, often as the brand Zepbound,...

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Does Methotrexate Show Up on a Drug Test? Immunosuppressants and Panels

Oct 16, 2026 ·8 min read

Does Methotrexate Show Up on a Drug Test? Immunosuppressants and Panels

Methotrexate is a prescription antimetabolite used to treat certain cancers, rheumatoid arthritis, psoriasis, and other autoimmune conditions. It is not a controlled substance under...

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Does Keppra Show Up on a Drug Test? Levetiracetam and Standard Panels

Oct 16, 2026 ·7 min read

Does Keppra Show Up on a Drug Test? Levetiracetam and Standard Panels

Keppra is the brand name for levetiracetam, an anticonvulsant prescribed for seizure disorders. People taking it sometimes ask whether it will show up on...

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Does Hydroxychloroquine Show Up on a Drug Test? Plaquenil and Panel Screens

Oct 16, 2026 ·7 min read

Does Hydroxychloroquine Show Up on a Drug Test? Plaquenil and Panel Screens

Hydroxychloroquine, sold under the brand name Plaquenil among others, is a prescription antimalarial that is also used long term to manage lupus and rheumatoid...

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Does Fluconazole Show Up on a Drug Test? Antifungals and Workplace Panels

Oct 16, 2026 ·7 min read

Does Fluconazole Show Up on a Drug Test? Antifungals and Workplace Panels

Fluconazole is a prescription antifungal medication, commonly known by the brand name Diflucan, used to treat yeast infections and other fungal illness. It is...

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Does Etizolam Show Up on a Drug Test? Designer Benzodiazepines and BZO Panels

Oct 16, 2026 ·7 min read

Does Etizolam Show Up on a Drug Test? Designer Benzodiazepines and BZO Panels

Etizolam has shown up in counterfeit pills, in postmortem and driving under the influence cases, and in routine toxicology work across the country. It...

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Does Dramamine Show Up on a Drug Test? Dimenhydrinate and False Positive Screens

Oct 16, 2026 ·8 min read

Does Dramamine Show Up on a Drug Test? Dimenhydrinate and False Positive Screens

Dramamine is not a drug of abuse, and it is not a target on any standard employment drug panel. The active ingredient in original...

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Does Doxepin Cause a False Positive Drug Test? Tricyclics and TCA Screens

Oct 16, 2026 ·8 min read

Does Doxepin Cause a False Positive Drug Test? Tricyclics and TCA Screens

Doxepin is a tricyclic antidepressant. It is sold at higher doses for depression and anxiety and, separately, at a very low dose for insomnia...

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Does Depakote Show Up on a Drug Test? Valproate and Workplace Panels

Oct 16, 2026 ·6 min read

Does Depakote Show Up on a Drug Test? Valproate and Workplace Panels

Depakote is a brand name for divalproex sodium, which the body converts into valproic acid (also called valproate). It is an anticonvulsant used for...

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Does Aspirin Show Up on a Drug Test? Salicylates and Panel Screens

Oct 16, 2026 ·7 min read

Does Aspirin Show Up on a Drug Test? Salicylates and Panel Screens

Aspirin, also called acetylsalicylic acid, is an over the counter salicylate used for pain, fever and, at low daily doses, heart protection. It is...

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