Mixing DayQuil and Xylazine (tranq)
Unsafe
Risk of serious physical or psychological harm. Not recommended under any circumstances.
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”.
- 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.
Can you take DayQuil with Xylazine?
DayQuil contains acetaminophen and DXM. The most concerning part is DayQuil (DXM) with Xylazine: high-dose DXM and xylazine both impair breathing, and vomiting while sedated is the danger. Avoid this combination, and put anyone who passes out on their side. MixSafe rates DayQuil with Xylazine as "Unsafe" — risk of serious physical or psychological harm. Not recommended under any circumstances. Sources: the Drug Facts labels on DailyMed and MixSafe research. Educational information, not medical advice.
What is in it
- DayQuil
- Acetaminophen + DXM. DayQuil also contains phenylephrine, a decongestant, and DayQuil Severe adds guaifenesin, an expectorant. MixSafe has no data for either.
Ingredient by ingredient
DayQuil (DXM) + XylazineUnsafe
High-dose DXM and xylazine both impair breathing, and vomiting while sedated is the danger. Avoid this combination, and put anyone who passes out on their side.
At recreational doses DXM impairs breathing and coordination on its own; xylazine adds deep sedation, a slow heart and low blood pressure. Vomiting while sedated is the usual danger.
Sources: What You Should Know About Xylazine. CDC · Ruiz-Colón K et al. Xylazine intoxication in humans and its importance as an emerging adulterant in abused drugs: a comprehensive review of the literature. Forensic Sci Int. 2014 · Friedman J et al. Xylazine spreads across the US: a growing component of the increasingly synthetic and polysubstance overdose crisis. Drug Alcohol Depend. 2022
DayQuil (Acetaminophen) + XylazineCaution
Nobody has studied this pair. Xylazine alone causes deep sedation and slowed breathing that naloxone can't reverse, and it nearly always comes cut into fentanyl. Don't use alone.
Nobody has studied xylazine with this, and no specific interaction is known. It is rated Caution rather than low risk because xylazine is barely studied in people and dangerous on its own: deep sedation, slowed breathing, a slow heart and low blood pressure, none of which naloxone reverses. It is almost never taken on purpose; it comes cut into fentanyl, so if you have been exposed to it, look at the fentanyl pair too, and do not use alone.
Sources: What You Should Know About Xylazine. CDC · Ruiz-Colón K et al. Xylazine intoxication in humans and its importance as an emerging adulterant in abused drugs: a comprehensive review of the literature. Forensic Sci Int. 2014 · Friedman J et al. Xylazine spreads across the US: a growing component of the increasingly synthetic and polysubstance overdose crisis. Drug Alcohol Depend. 2022
- Vicks DayQuil Cold & Flu LiquiCaps, Drug Facts label. DailyMed. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=efb982d4-93d0-815f-e053-2995a90a82dd
Ingredient lists checked 2026-09-27. Formulas change and store brands differ, so the Drug Facts box on your own packet is the final word.
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