Cocaine Overdose
Cocaine overdose can cause chest pain, seizures, overheating or loss of consciousness. Learn the warning signs and how to respond while emergency help arrives.
Battling addiction & ready for help?
Recognize an Overdose and Get Emergency Help
Suspected overdose: call 911 now. Chest pain, a seizure, severe overheating, breathing trouble or loss of consciousness after cocaine use needs emergency help. Give naloxone if opioids could be involved. Follow the dispatcher’s instructions for breathing support or CPR and stay with the person if safe.[1][2]
What Is a Cocaine Overdose?
A cocaine overdose happens when cocaine causes effects severe enough to threaten a person’s health or life. It can involve the heart, brain, body temperature and mental state. Medical professionals may call this cocaine toxicity. It can happen after any route of use, and a person does not need to have cocaine use disorder to experience it.[1]
Cocaine often causes a fast heart rate, high blood pressure, agitation and overheating. Opioids such as fentanyl often cause slowed breathing and unresponsiveness. These patterns help explain the drugs’ effects, but they are not a reliable way for a bystander to rule out an emergency. More than one substance may be involved.[1]
Someone who used cocaine and becomes quiet, cannot wake up or is not breathing normally still needs immediate help. Do not wait for the person to look overheated or agitated. Naloxone can reverse an opioid component of an overdose, while medical care addresses cocaine’s effects.[1][2]
- Call 911 for suspected overdose. Chest pain, seizures, severe overheating or loss of consciousness need emergency assessment.[1]
- Naloxone treats opioid effects. Give it if opioids could be involved, while getting emergency help for cocaine toxicity.[1]
- There is no reliable safe dose. Potency, other substances and individual health can change the risk.[1]
Signs of a Cocaine Overdose
Call 911 for suspected overdose, especially with any of the following symptoms. You do not need to identify the drug or estimate the dose before seeking help.[1]
| What you notice | Why it needs urgent attention |
|---|---|
| Chest pain, pressure, a racing or irregular heartbeat | Cocaine can cause a heart attack or dangerous heart rhythm. |
| Severe overheating, confusion or extreme agitation | Temperature and mental status changes can accompany serious toxicity. |
| A seizure, collapse or loss of consciousness | These can signal a life-threatening complication. |
| Sudden severe headache, weakness on one side or difficulty speaking | These may be signs of a stroke. |
| Slow, irregular or absent breathing, or someone who cannot be awakened | Opioids or other complications may be involved. Give naloxone if available and follow emergency instructions. |
These warning signs come from CDC overdose guidance and NIDA’s review of cocaine complications. Not every person will have every symptom, and absence of one sign does not establish safety.[1][3]
Chest pain after cocaine use deserves an emergency assessment even in a young person without known heart disease. A bystander cannot distinguish a panic attack from a heart problem by appearance alone. Cocaine-related sudden death can occur with first use or after previous use without an obvious emergency.[3]
What to Do While Waiting for Help
Follow the emergency dispatcher’s instructions and use these steps to support the person while help arrives.[1]
- Call 911. Describe the symptoms and location. Tell responders what substances may have been taken and when, if known. Follow the dispatcher’s instructions.[1]
- Give naloxone if opioids could be involved. It does not reverse cocaine toxicity, but it can reverse opioid effects. Use the product instructions and follow the dispatcher’s guidance.[1][2]
- Watch breathing. If the person is unresponsive or not breathing normally, follow emergency instructions for rescue breathing or CPR. If they are breathing and need protection from choking, place them on their side.[1][2]
- Reduce heat and stimulation. If safe, move away from a hot or crowded setting, reduce noise and use a cool, wet cloth. Cooling must not delay emergency care.[1]
- Protect someone having a seizure. Clear nearby objects, help prevent a fall and do not restrain their movements or put anything in their mouth.[1]
- Stay nearby if safe. Monitor changes until help arrives. Tell responders if naloxone was given and whether the person responded.[1][2]
Naloxone helps with opioids, not every part of an overdose. CDC’s stimulant guide explains that stimulant symptoms may become apparent after naloxone reverses opioid effects. For example, someone may begin breathing better but remain severely overheated or confused. They still need emergency assessment.[1]
Do not assume someone is safe because they wake up or say they feel better. Stay with them while emergency help arrives. For a suspected overdose, call 911 rather than using a treatment referral service or mental health crisis line as the first response.[2]
How Cocaine Can Harm the Heart and Brain
Cocaine stimulates the body’s stress response. Heart rate and blood pressure can rise while blood vessels narrow, increasing the heart’s workload and reducing its oxygen supply. Cocaine can also promote clotting. Together, these effects can contribute to a heart attack.[4]
The danger extends beyond a heart attack. Cocaine can disturb heart rhythm, cause seizures and contribute to strokes, including bleeding in the brain. Severe overheating and mental changes can occur as part of stimulant toxicity. These problems may overlap rather than appearing as separate stages.[3][1]
Risk varies with the amount and strength of the drug, route of use, other substances and a person’s health. An unregulated product adds uncertainty about ingredients and potency. Previous use without an overdose does not make a later exposure safe.[1][3]
Cocaine also has limited medical uses as a local anesthetic. That does not mean cocaine has no toxicity when used medically. Clinical use involves a controlled product and professional assessment, which is different from using an unregulated supply.[3]
Alcohol, Opioids and Other Overdose Risks
Cocaine and Alcohol
Using alcohol with cocaine can be particularly dangerous. The body forms cocaethylene when the two substances are combined. NIDA explains that this may increase toxic effects on the heart. Feeling less drunk or more alert does not mean the combination is safer.[3]
Tell emergency responders about alcohol and other drugs, even if cocaine seems to be the main concern. This information helps the team understand the possible causes of the symptoms.[1]
Cocaine and Opioids
Cocaine and opioids do not cancel each other out. A person may underestimate an opioid’s sedating effects while also feeling stimulated, which can lead to taking more opioid than intended. Both drugs can contribute to an overdose.[3]
Exposure can result from intentional use of both drugs, a mixture, a mislabeled product or contamination. A death involving both cocaine and fentanyl does not, by itself, show which circumstance occurred. Naloxone remains useful when opioid involvement is possible, including when the person thought they used only cocaine.[1][5]
What Death Statistics Can and Cannot Tell Us
CDC reported 29,449 U.S. overdose deaths involving cocaine in 2023, compared with 4,681 in 2011.[5] Final 2024 data recorded 21,945 deaths.[6] The age-adjusted death rate per 100,000 fell from 8.6 to 6.3 between 2023 and 2024, a 26.7% decrease in the rate.[6] These are deaths involving cocaine, not necessarily cocaine alone.[6]
The report found that opioids frequently accompanied stimulant deaths. It also documented a substantial number of deaths involving stimulants without opioids. Cocaine’s own toxicity matters, and describing cocaine deaths as simply fentanyl poisonings obscures both that risk and intentional use of multiple substances.[5]
For more context, see our cocaine statistics guide. Population statistics cannot predict whether a particular person or dose will cause an overdose.
How Emergency Teams Treat Cocaine Toxicity
Emergency care focuses on the person’s symptoms and complications. The team assesses breathing, circulation, temperature and mental state. Treatment may include monitored medication for agitation or seizures, cooling and care for high blood pressure, abnormal heart rhythms, heart attack or stroke. There is no medication that reverses all stimulant effects the way naloxone reverses opioid effects.[1][5]
Benzodiazepines are commonly used by clinicians for acute stimulant symptoms. This is monitored treatment, not advice to take someone else’s medication or combine sedatives with cocaine at home. Tell the medical team about all substances and prescribed medicines.[1]
Beta blockers, medicines used for some heart conditions, require a more careful explanation than a blanket warning that they always worsen cocaine toxicity. A 2018 analysis combining five studies involving 1,794 patients with cocaine-associated chest pain found no significant increase in heart attack or all-cause mortality with beta blocker use.[7] That finding does not make every beta blocker appropriate for every overdose.[7]
The emergency team chooses medication according to the current clinical situation. Do not take, stop or change a prescribed heart medicine based on an overdose article. Ask the treating clinician how your cocaine use and other medications affect the plan.
Reducing the Risk of Another Overdose
Stopping cocaine use prevents further cocaine exposure, but surviving an overdose does not mean existing injuries or other substance risks have disappeared. Follow the discharge plan and arrange follow-up for physical health, mental health and substance use. A return to use is a reason to seek more support, not proof that treatment cannot work.[3][4]
If a person continues using cocaine, risk reduction still matters. CDC recommends avoiding use alone, avoiding combinations of substances and having naloxone available. A trusted person who is not using at the same time can recognize trouble and call for help. These steps reduce risk but cannot make cocaine use safe.[1]
Unregulated drugs can have unexpected ingredients. Drug checking may provide information about a sample, but it does not remove cocaine’s own risks. Ask a local harm reduction service about available testing and naloxone. Keep emergency response planning separate from assumptions about what a product contains.[1]
Treatment and Support After an Overdose
An overdose is an opportunity to offer treatment without blame. It does not establish a diagnosis of cocaine use disorder by itself. A clinician can assess the pattern of use, cravings, health consequences and difficulty cutting down, then recommend an appropriate level of care.[4]
Contingency management uses agreed rewards to reinforce recovery behaviors, such as attending treatment or meeting goals for not using cocaine. It has strong evidence for stimulant use disorder. Cognitive behavioral therapy helps people recognize triggers and develop coping skills. Neither approach guarantees an individual outcome.[5][3]
Care should also address sleep, depression, anxiety, housing and other practical needs. If opioids or alcohol are involved, those conditions need assessment too. There is currently no FDA-approved medication specifically for cocaine use disorder, although clinicians may consider medication for particular symptoms or co-occurring conditions.[3][4]
Read about cocaine addiction, cocaine’s effects, withdrawal symptoms and cocaine rehab. FindTreatment.gov can help locate care. If another overdose is suspected, call 911 immediately.[8]
For suicidal thoughts or a mental health crisis in the United States, call or text 988. A suspected overdose, suicide attempt or immediate physical danger requires 911.[9][2]
Frequently asked questions
What Are the Signs of a Cocaine Overdose?
Does Narcan Work for Cocaine Overdose?
Naloxone, including Narcan, reverses opioid effects rather than cocaine toxicity. Give it if opioids could be involved, even when the person believed they took only cocaine. Call 911 and follow instructions for breathing support. Cocaine complications may still need treatment after breathing improves.[1]
What Should You Do If Someone Overdoses on Cocaine?
Can You Overdose the First Time You Use Cocaine?
Why Is Mixing Cocaine and Alcohol Dangerous?
What Treatment Helps After a Cocaine Overdose?
Get Treatment Help
If you or someone you love is struggling with addiction, getting help is just a phone call away, or consider trying therapy online with BetterHelp.
Exclusive offer: 20% Off BetterHelp*Following links to the BetterHelp website may earn us a commission that helps us manage and maintain AddictionHelp.com. *Get 20% off your first month of BetterHelp. Offer valid for new BetterHelp users only. Offer cannot be combined with insurance.
- Fact-Checked
- Editor
