Mixing Fentanyl (fent) and Zolpidem (Ambien)

Dangerous

The deadliest pairing in current overdose data: people simply stop breathing, often silently.

Do this

Do not combine. If you use anyway, never alone, and naloxone in the room.

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

Where the risk isTap for why
In an emergency, call 911911Never Use AlonePoison Control
What to do
  • Say what was taken and how much.Responders need it, and in most US states Good Samaritan laws protect both of you from drug possession charges when you call for an overdose.
  • Unresponsive: put them on their side, tilt the head back, and stay until help arrives.Never leave someone alone to “sleep it off”.
  • Give naloxone (Narcan) if you have it.It is sold over the counter in every US state and does no harm if opioids turn out not to be involved.
  • Never Use Alone 1-800-484-3731Stays on the line and sends help if you stop responding.
  • Full steps: what to do if it is already happeningOverdose signs, the recovery position, what to say on the call, and whether you can be charged for making it.
  • Poison Control 1-800-222-1222Free and 24/7, for “is this bad?” before it becomes an emergency.
What “Dangerous” means

High risk of death or life-changing injury. Do not combine.

How the ratings work
The longer explanation

The single most lethal pairing in current overdose data. Benzodiazepines remove the arousal response you would otherwise rely on to keep breathing, and fentanyl-benzodiazepine deaths are characteristically silent — people simply stop. Nitazenes and benzodiazepine analogues in the same supply make both halves of this unknowable by appearance.

Sources (2)

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Other names
Fentanyl
fent, fentanil, carfentanil, nitazene, nitazenes, duragesic
Synthetic — potent by micrograms, unevenly mixed
Zolpidem
ambien, ambien cr, stilnox, edluar, intermezzo, zolpimist
Works like a benzo, plus sleepwalking and sleep-driving with no memory of it
Also searched asfent and Ambien, carfentanil and Ambien, fent and ambien cr, carfentanil and ambien cr
Add a third substance in the checker

Related combinations

Fentanyl withWhat not to mix with Fentanyl →
Zolpidem withWhat not to mix with Zolpidem →
All combinations →

Can you mix Fentanyl (fent) and Zolpidem (Ambien)?

MixSafe rates mixing Fentanyl and Zolpidem as "Dangerous" — high risk of death or life-changing injury. Do not combine. No interaction specific to Fentanyl and Zolpidem is documented; this is the default for Benzodiazepines. Source: MixSafe research. 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.