Low risk, decreased effect

Low risk of harm from the combination, but one substance is expected to blunt the other. Redosing to chase the missing effect is the usual way this turns dangerous.

Do this

If one feels weaker than usual, wait it out instead of taking more.

Reported

Both can dull each other's effects, so if one wears off before the other it's possible to overdose due to the lack of counteraction

General answer for Benzodiazepines: nothing specific to these two is documented.

What “Low risk, decreased effect” means

Low risk of harm from the combination, but one substance is expected to blunt the other. Redosing to chase the missing effect is the usual way this turns dangerous.

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Other names
Amphetamines
adderall, speed, amphetamine, dexedrine, vyvanse, lisdexamfetamine
Prescription and street speed — Adderall, dexamphetamine
Zolpidem
ambien, ambien cr, stilnox, edluar, intermezzo, zolpimist
Works like a benzo, plus sleepwalking and sleep-driving with no memory of it
Also searched asAdderall and Ambien, speed and Ambien, Adderall and ambien cr, speed and ambien cr

Related combinations

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Can you mix Amphetamines (Adderall) and Zolpidem (Ambien)?

MixSafe rates mixing Amphetamines and Zolpidem as "Low risk, decreased effect" — low risk of harm from the combination, but one substance is expected to blunt the other. Redosing to chase the missing effect is the usual way this turns dangerous. No interaction specific to Amphetamines and Zolpidem is documented; this is the default for Benzodiazepines. Source: TripSit drug combination chart, retrieved 2026-08-20. Educational information, not medical advice.

This is a class-level answer, inherited from Benzodiazepines. Nothing specific to this exact pair is documented, so treat it as the default for the class rather than a measurement of these two drugs together.