What Is mixed amphetamine salts / amphetamines? Drug Class, Schedule & Drug Test Answers

Evidence-based answer reviewed against SAMHSA cutoffs and FDA assay documentation · Updated September 2026

Quick answer: mixed amphetamine salts / amphetamines is a Stimulant (amphetamine / dextroamphetamine / lisdexamfetamine). Schedule II by prescription (ADHD, narcolepsy). Here's how the drug is classified, whether it's a narcotic/controlled substance, and what that means for testing.

What is mixed amphetamine salts / amphetamines?

Drug class: Stimulant (amphetamine / dextroamphetamine / lisdexamfetamine)

Federal schedule: Schedule II by prescription (ADHD, narcolepsy).

Amphetamines are on every standard panel including the federal 5-panel. A prescription does not exempt you — it explains the result. Take your prescription (or pharmacy printout) to the collection site or have it ready for the Medical Review Officer call; verified prescriptions are reported as negative.

Is mixed amphetamine salts / amphetamines a narcotic?

It is classified as a narcotic under the DEA's federal schedule. What matters more for you: Schedule II by prescription (ADHD, narcolepsy)..

Does it show up on drug tests?

Yes — it is on the standard federal 5-panel. See the full Amphetamines drug test guide for detection windows and cutoffs.

False-positive caution

  • Documented amphetamine-screen cross-reactants include bupropion (bupropion), labetalol, phentermine, pseudoephedrine/pseudoephedrine decongestants, methylphenidate (some assays), trazodone, selegiline, and promethazine — immunoassay positives only; GC–MS confirmation distinguishes them.
  • Phentermine is a genuine amphetamine-class result on many assays rather than a false one — disclose it.

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Medical disclaimer: DrugPanels provides educational information about laboratory drug testing and does not offer medical advice, diagnosis, or treatment. Detection windows are population ranges — individual results vary with metabolism, dose, frequency and health status. Never stop prescribed medication to pass a test without talking to your prescriber. Affiliate disclosure: some links on this page are affiliate links; if you order through them we may earn a commission at no additional cost to you.

People also ask

Does mixed amphetamine salts Show up Drug Test?

Yes — Amphetamines appears on standard drug panels. Full guide →

How Long Do Amphetamines Stay in Your System?

How long Amphetamines stays detectable in your system (all test types) — urine, hair, saliva & blood windows explained with cutoffs. Full guide →

How Long Do Amphetamines Stay Detectable in Urine?

How long Amphetamines stays detectable in urine — urine, hair, saliva & blood windows explained with cutoffs. Full guide →

Will mixed amphetamine salts Make You Fail a Drug Test?

Can Amphetamines trigger a false positive? Cross-reactivity evidence, confirmation testing, and how to clear your name with the MRO. Full guide →

Do prescriptions count against me?

No — verified prescriptions report as negative through the Medical Review Officer. Declare medications at collection and answer the follow-up call.

Related guides

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Sources & further reading

  • SAMHSA — Mandatory Guidelines for Federal Workplace Drug Testing Programs (cutoffs, MRO process)
  • DOT — 49 CFR Part 40 procedures for transportation workplace testing
  • Brahm NC et al., Mayo Clinic Proceedings 2008;83(1):66–76 — false-positive cross-reactivity reference
  • FDA — drug-of-abuse test device labeling (detection window conventions)