If someone who has taken 7-OH is breathing slowly or has stopped breathing, is limp, or cannot be woken, call 911 now and give naloxone if it is on hand. 7-OH is a mu-opioid receptor agonist, so the respiratory depression it causes is opioid respiratory depression and is naloxone-reversible, which is the single fact that decides what you do in the next five minutes.
What to do in the next five minutes
Call 911. Give naloxone if you have it, and a second dose after two to three minutes if breathing has not improved. Lay the person on their side so they cannot choke, and stay until paramedics arrive. Arizona law protects you from drug possession charges when you call in good faith, so the call is the right move even if there are substances in the room.
If you or someone you know is in a medical emergency, call 911. The 988 Suicide and Crisis Lifeline is available 24/7 by call or text.
Key takeaways
- Breathing is the sign that decides it. Slow, shallow, or stopped breathing means call 911 immediately, whatever else is or is not happening.
- Naloxone works on 7-OH. Research on breathing in rats found 7-OH depresses respiration comparably to morphine, and that naloxone reverses it.
- It does not work the same way on plain leaf. The same research found mitragynine, the leaf's abundant alkaloid, unaffected by naloxone.
- Calling is protected. Arizona's Good Samaritan statute bars possession charges built on evidence gathered because someone sought help.
What a 7-OH overdose looks like
A 7-OH overdose presents as an opioid overdose, because that is the receptor it acts on. The picture is usually quiet. Someone who has been nodding off becomes someone you cannot wake, and breathing slows first. Split what you see into two tiers.
Signs that mean call 911 now
- Breathing that is slow, shallow, irregular, or has stopped.
- Choking, gurgling, or a snoring sound from someone who does not usually snore.
- Cannot be woken by shouting their name or grinding your knuckles on their breastbone.
- Lips, fingertips, or the face turning blue, grey, or unusually pale.
- Limp body, or pupils shrunk to pinpoints.
- A seizure, or a heartbeat that is very slow or very irregular.
Any single item on that list is enough. You do not need several, and you do not need to be certain it was 7-OH.
Signs that still need medical attention
Heavy sedation where the person still rouses, repeated vomiting, confusion, a racing heart, sweating with tremor, or agitation that will not settle. None of these can wait until morning. They can be the front edge of something worse, particularly if the amount taken is unknown or the product was unfamiliar. Poison Help at 1-800-222-1222 is staffed 24 hours a day and can tell you whether to sit tight or go in.
Why a 7-OH overdose is an opioid emergency
7-hydroxymitragynine is a mu-opioid receptor agonist, the same receptor morphine and fentanyl act on. The failure mode is the same: the drive to breathe is suppressed, and the person stops breathing before anything else does. Breathing is the thing to watch. Research on breathing in rats found 7-OH produced respiratory depression comparable with morphine.
Why potency varies between products
7-OH occurs in the kratom plant only in trace amounts. What is sold under the name is concentrated or semi-synthetic, and the Food and Drug Administration's notice Hiding in Plain Sight: 7-OH Products describes these reaching concentrations the leaf never delivers. Labels frequently do not state how much is inside, so two products with the same name can behave very differently. Treat every new package as unknown. That is how someone with a stable routine overdoses.
Mixing with alcohol, benzodiazepines, or other opioids
Every one of those also suppresses breathing. Combined, the effect is additive and the threshold for a dangerous outcome drops sharply. Treat that situation as higher risk and call sooner. Tell the paramedics everything that was taken, because the treatment depends on it.
Does naloxone work on 7-OH
Yes. Because 7-OH acts on the mu-opioid receptor, naloxone displaces it and reverses the respiratory depression. The rat-breathing research found that depression fully reversible by naloxone, and a published human case, Kratom (Mitragynine) Ingestion Requiring Naloxone Reversal, describes that outcome in an emergency department.
One dose may not be enough. Give a second after two to three minutes if breathing has not picked up. Naloxone can wear off before the 7-OH does, so the person can slide back after seeming fine, and that is why the ambulance still comes even when it works.
It is not a general antidote for everything sold as kratom. The same research found mitragynine, the alkaloid that dominates actual leaf, raised respiratory frequency rather than depressing it and was unaffected by naloxone. Give naloxone anyway if breathing is failing and you are unsure what was taken. It will not hurt someone with no opioid in their system.
What to do while you wait for paramedics
Put the person on their side, lower arm stretched out and upper knee bent forward so they cannot roll onto their face. That is the recovery position, and it stops someone choking if they vomit while unconscious.
Do not leave the room. Stay with them and keep checking that the chest is rising. If it stops and you know rescue breathing or CPR, start. Do not use a cold shower, do not try to make them vomit, and do not leave them to sleep it off, which is the most common and most costly mistake here. Our guide on how to respond to a drug overdose sets out the full procedure.
Arizona's Good Samaritan protection
People hesitate to call because they are afraid of what happens next. Arizona law addresses that directly. Under A.R.S. section 13-3423, someone who in good faith seeks medical assistance for a person experiencing a drug-related overdose may not be charged or prosecuted for possession or use of a controlled substance or paraphernalia where the evidence came from seeking that help. It covers the person who overdosed as well as the caller, and it counts calling 911, law enforcement, poison control, or an emergency department as seeking help.
It is not blanket immunity and does not reach unrelated offenses or distribution charges. For the decision in front of you, it covers what people actually fear.
Where 7-OH stands with the FDA and DEA
On July 1, 2026 the Drug Enforcement Administration announced a Notice of Intent to temporarily place 7-OH above a specified threshold into Schedule I, published in the Federal Register on July 6, 2026. It is not scheduled yet. A Notice of Intent begins that process rather than completing it, so read past any source telling you 7-OH is already scheduled. Our guide to the federal and Arizona law on 7-OH covers the detail. For the decision in front of you it changes nothing: legal status says nothing about what a substance does to breathing.
After the emergency
An overdose is often the first time a family sees the size of the problem. Dependence on 7-OH builds quickly, for reasons covered in our guide to why dependence on 7-OH builds quickly.
Guiding Road Recovery Center is a men-only program in the Phoenix metro, offering residential, partial hospitalization, and intensive outpatient care along with supportive housing. It does not provide detox on site. Where detox is the first step, the admissions team coordinates that bed with a medical partner so there is no gap.
Medication-assisted treatment is an evidence-based approach for opioid use disorder and is the right answer for some people. Guiding Road's own program is abstinence-based and 12-step immersive. Which fits is a conversation worth having rather than a question to settle from a website. Where the concern is treatment rather than an emergency, 7-OH addiction treatment covers the program.
Common questions
How fast does a 7-OH overdose come on?
Faster than most people expect, and the danger window is not the window where someone feels the effect. 7-OH is relatively short-lived, which leads people to redose before the previous amount has cleared. That stacking produces an overdose in someone whose routine has not changed. The danger builds while the effect fades.
Can you overdose on 7-OH without taking anything else?
Yes. 7-OH depresses breathing on its own, so no second substance is needed for a life-threatening outcome. Mixing raises the risk further, but a single-substance overdose is entirely possible. It is treated the same way: call 911, give naloxone, put the person on their side. Breathing is what to watch either way.
What if I am not sure it is an overdose?
Call anyway. The rule under uncertainty is simple: if the person is not breathing normally and you cannot wake them, treat it as an overdose regardless of what you think they took. Naloxone does not harm someone with no opioid in their system, and paramedics would rather attend a call that turns out to be nothing. If the person is rousable and you are weighing whether to go in, Poison Help at 1-800-222-1222 will talk it through with you.
Will the person get in trouble if I call 911?
Arizona's Good Samaritan statute exists precisely because that fear costs lives. A.R.S. section 13-3423 bars charges for possession or use of a controlled substance or paraphernalia, for the caller and for the person who overdosed, where the evidence came from seeking medical help in good faith. It does not cover unrelated offenses or distribution. Once the emergency is over, the Substance Abuse and Mental Health Services Administration runs a free, confidential National Helpline at 1-800-662-4357, 24 hours a day.
Sources
- Hill, R., et al. (2025). Mitragynine and 7-hydroxymitragynine: bidirectional effects on breathing in rats. PubMed. pubmed.ncbi.nlm.nih.gov
- Overbeek, D. L., et al. (2019). Kratom (Mitragynine) Ingestion Requiring Naloxone Reversal. PMC6366391. pmc.ncbi.nlm.nih.gov
- U.S. Food and Drug Administration. Hiding in Plain Sight: 7-OH Products. fda.gov
- Drug Enforcement Administration. (2026). DEA to Temporarily Schedule 7-OH and Related Substances to Protect Public Safety. July 1, 2026. dea.gov
- Federal Register. (2026). Schedules of Controlled Substance: Temporary Placement of 7-Hydroxymitragynine Above a Specified Threshold in Schedule I. Document 2026-13580, July 6, 2026. federalregister.gov
- Arizona State Legislature. A.R.S. section 13-3423, Medical assistance requests; prohibited prosecution of Good Samaritans. azleg.gov
- Substance Abuse and Mental Health Services Administration. National Helpline, 1-800-662-4357. samhsa.gov
Get Help at Guiding Road
If the emergency has passed and the question is what happens now, the admissions team can talk through the next step for him, including coordinating a medical detox bed with a partner facility where that is the right place to start. One call is enough to begin.
Clinically Reviewed by
Bobby Boykin, MS, LASAC, CRS
Executive Director, Guiding Road Recovery Center
Clinical content on this page, including the overdose signs, the naloxone guidance, and the description of what to do while waiting for paramedics, was reviewed before publication.