Overdose Treatment: What to Do and How Overdoses Are Treated
What to do if someone overdoses, how different overdoses are treated medically, the role of naloxone for opioids, and why a drug overdose is always a medical emergency.
Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician and Addiction Medicine Specialist, Phuket Island Rehab.
A drug overdose is a medical emergency, and the most important overdose treatment is to call emergency services immediately, because prompt medical care can save a life. While waiting for help, you should stay with the person, try to keep them awake and responsive, place them on their side in the recovery position if they are unconscious but breathing to protect their airway, and be ready to give rescue breaths or CPR if their breathing or heart stops and you are trained to do so. For a suspected opioid overdose, giving the medication naloxone, which rapidly reverses the effects of opioids and can restore breathing, is a crucial and potentially life-saving treatment, and naloxone is increasingly available to the public. In hospital, overdose treatment depends on the substance and may include measures to support breathing and circulation, specific antidotes where they exist, medications to counteract the drug’s effects, treatments to limit absorption or help remove the substance, and monitoring and supportive care. Because overdoses from different drugs require different treatments, telling medical staff what was taken is vital. The key message is that any suspected overdose needs emergency medical help immediately, and acting fast saves lives.
Overdose treatment: act immediately
A drug overdose is always a medical emergency, and the single most important element of overdose treatment is to get emergency medical help immediately, because prompt, professional care can save a life. An overdose occurs when someone takes a toxic amount of a drug or combination of drugs, whether accidentally or deliberately, overwhelming the body’s ability to cope and causing dangerous effects that can be life-threatening. The specific treatment depends on the substance involved, but in every case, calling emergency services without delay and getting the person to medical care is the priority. Acting fast, rather than waiting to see if the person recovers, is often the difference between life and death in an overdose.
This article explains what to do if someone overdoses, including the immediate first-aid steps while waiting for help, the crucial role of the medication naloxone for opioid overdoses, and how overdoses from different substances are treated medically. It also emphasises why an overdose is always an emergency and why telling medical staff what was taken is so important. The aim is clear, practical, potentially life-saving information for anyone who might encounter an overdose, alongside the firm message that any suspected overdose requires emergency medical help immediately. Knowing what to do, and doing it quickly, can save someone’s life, so understanding overdose treatment is genuinely valuable knowledge.
What to do if someone overdoses
If you suspect someone has overdosed, the first and most important step is to call your local emergency number immediately for an ambulance. Signs that may indicate an overdose include unconsciousness or being unable to wake the person, very slow, shallow, or stopped breathing, blue or grey lips or fingertips, a slow, irregular, or stopped pulse, severe confusion or agitation, seizures, vomiting, or a very abnormal body temperature, though the signs vary depending on the drug. Do not wait to be certain it is an overdose; if you are worried, call for help. When you call, give as much information as you can, including what you think the person has taken, how much, and when, and the person’s condition, and follow the instructions the operator gives you.
While waiting for emergency help to arrive, stay with the person and do what you can to help. Try to keep them awake and responsive if possible, and keep them as calm as you can. If the person is unconscious but breathing, place them on their side in the recovery position, which helps keep their airway clear and reduces the risk of choking if they vomit. Monitor their breathing and consciousness, and be prepared to give rescue breaths or CPR if their breathing or heart stops and you are trained to do so; the emergency operator can guide you through this. Do not try to make the person vomit unless instructed to by a medical professional, and do not leave them alone. If you know what they took, keep any packaging or substances to show the paramedics.
| Step | Action |
|---|---|
| 1. Call for help | Call emergency services immediately |
| 2. Give information | Tell them what was taken, how much, when |
| 3. If unconscious + breathing | Recovery position (on their side) |
| 4. Monitor | Watch breathing and consciousness |
| 5. If breathing/heart stops | Rescue breaths or CPR if trained |
| Opioid overdose | Give naloxone if available |
Naloxone: reversing opioid overdose
For a suspected opioid overdose, there is a specific, potentially life-saving treatment: naloxone. Opioid overdoses, from drugs such as heroin, fentanyl, oxycodone, morphine, or other opioids, cause death mainly by suppressing breathing until it stops. Naloxone is a medication that rapidly reverses the effects of opioids by blocking the opioid receptors, and it can restore normal breathing within minutes in someone who has overdosed on opioids. Naloxone is available as a nasal spray and an injection, and it is increasingly made available to the public, to people who use opioids and their families, and to others who might witness an overdose, precisely because giving it quickly can save lives. If you have naloxone and suspect an opioid overdose, you should give it.
It is important to understand some key points about naloxone. It only works on opioids; it will not reverse an overdose from other substances, though it is generally safe to give if you are unsure and opioids might be involved. Its effect can wear off after a period, sometimes before the opioids have left the body, so the person can relapse into overdose and may need further doses, and with very strong opioids like fentanyl, multiple doses may be needed. Crucially, giving naloxone does not replace the need for emergency medical care; you must still call emergency services, because the person needs proper medical assessment and monitoring even if naloxone revives them. Naloxone is a vital emergency treatment for opioid overdose, but it is a step alongside, not instead of, calling for help.
How overdoses are treated medically
In hospital, overdose treatment depends heavily on the substance or substances involved, which is why telling medical staff what was taken is so important. General principles include supporting the person’s vital functions, ensuring they can breathe, supporting their breathing or providing oxygen if needed, and maintaining their circulation and blood pressure, which is the foundation of overdose care and can keep a person alive while the drug is dealt with. Beyond this supportive care, treatment may include specific antidotes where they exist for particular substances, such as naloxone for opioids or other antidotes for certain other drugs, and medications to counteract the drug’s effects or treat complications such as seizures, abnormal heart rhythms, or agitation.
Other treatments may aim to limit how much of the drug is absorbed or to help remove it from the body, depending on the substance and the timing, and the person is closely monitored throughout, as their condition can change. The specific approach varies enormously between, for example, an opioid overdose, a stimulant overdose, a paracetamol overdose (which has its own specific antidote and is dangerous to the liver), an overdose of sedatives, or a mixed overdose. This is why there is no single overdose treatment, and why it is essential that medical staff know what the person has taken, so they can provide the right care. Modern overdose treatment is often very effective when the person reaches medical care in time, which is why getting help quickly matters so much.
After an overdose and getting help
Surviving an overdose, while a relief, is also an important moment for getting further help, because an overdose is often a sign of a serious problem with substances, whether an accidental overdose in the course of addiction, an overdose due to mixing substances or a contaminated supply, or a deliberate overdose reflecting a mental health crisis. After emergency treatment, it is important to address the underlying situation. For someone struggling with addiction, an overdose can be a turning point toward seeking treatment, and effective help, including detox, medication-assisted treatment for opioid addiction, therapy, and support, is available. For a deliberate overdose or one linked to a mental health crisis, mental health support is vital.
If you or someone you love has experienced an overdose, or is at risk of one through substance use, reaching out for help is a positive and potentially life-saving step. For people who use opioids, having naloxone available, not using alone, and being aware of the risks of mixing drugs or of reduced tolerance after a period of not using are important harm-reduction measures that can prevent fatal overdose. Beyond immediate safety, addressing the underlying addiction or mental health difficulties offers the best protection against future overdoses and a path to recovery. An overdose is a frightening and dangerous event, but surviving one is an opportunity to get the help that can prevent it happening again and support lasting recovery.
Summary
A drug overdose is a medical emergency, and the most important overdose treatment is to call emergency services immediately, because prompt medical care can save a life. While waiting for help, stay with the person, try to keep them awake and responsive, place them on their side in the recovery position if they are unconscious but breathing to protect their airway, and be ready to give rescue breaths or CPR if their breathing or heart stops and you are trained. For a suspected opioid overdose, giving naloxone, which rapidly reverses the effects of opioids and can restore breathing, is a crucial and potentially life-saving treatment, and naloxone is increasingly available to the public. In hospital, overdose treatment depends on the substance and may include measures to support breathing and circulation, specific antidotes where they exist, medications to counteract the drug’s effects, treatments to limit absorption or help remove the substance, and monitoring and supportive care. Because overdoses from different drugs require different treatments, telling medical staff what was taken is vital. The key message is that any suspected overdose needs emergency medical help immediately, and acting fast saves lives.
As Dr. Ponlawat Pitsuwan, addiction medicine specialist at Phuket Island Rehab, puts it, “When it comes to overdose, the most important thing anyone can know is simple: call for help immediately, do not wait. So many overdose deaths are preventable if the person reaches care in time. While you wait, keep them on their side so they do not choke, watch their breathing, and if it is opioids and you have naloxone, give it, it genuinely brings people back from the brink, though you still must call an ambulance because it can wear off. In hospital we tailor the treatment to the drug, which is why we always need to know what was taken. And surviving an overdose should never be the end of the story, it should be the start of getting help.”
Frequently asked questions
What should you do if someone overdoses?
Call your local emergency number immediately for an ambulance; this is the most important step. Give as much information as you can about what was taken, how much, and when, and the person’s condition. While waiting, stay with the person, try to keep them awake and responsive, and if they are unconscious but breathing, place them on their side in the recovery position to keep their airway clear. Monitor their breathing and consciousness, and be ready to give rescue breaths or CPR if their breathing or heart stops and you are trained; the operator can guide you. For a suspected opioid overdose, give naloxone if available. Do not make them vomit unless told to, and do not leave them alone. Acting fast can save their life.
How does naloxone treat an opioid overdose?
Naloxone treats an opioid overdose by rapidly reversing the effects of opioids. Opioid overdoses cause death mainly by suppressing breathing until it stops, and naloxone blocks the opioid receptors, reversing this and restoring normal breathing within minutes in someone who has overdosed on opioids. It is available as a nasal spray and an injection and is increasingly available to the public. However, naloxone only works on opioids, its effect can wear off before the opioids leave the body so further doses may be needed (especially with strong opioids like fentanyl), and it does not replace emergency medical care, you must still call an ambulance. Naloxone is a vital, potentially life-saving emergency treatment for opioid overdose, used alongside calling for help.
Are all overdoses treated the same way?
No. Overdose treatment depends heavily on the substance or substances involved, which is why telling medical staff what was taken is so important. General principles apply, supporting breathing, circulation, and vital functions, but beyond this, treatment varies: there are specific antidotes for some drugs (such as naloxone for opioids), medications to counteract effects or treat complications like seizures or abnormal heart rhythms, and treatments to limit absorption or help remove the drug. An opioid overdose, a stimulant overdose, a paracetamol overdose, a sedative overdose, and a mixed overdose all require different approaches. So there is no single overdose treatment, and accurate information about what was taken is essential for medical staff to provide the right care.
What are the signs of an overdose?
Signs vary depending on the drug, but warning signs that may indicate an overdose include unconsciousness or being unable to wake the person, very slow, shallow, or stopped breathing, blue or grey lips or fingertips, a slow, irregular, or stopped pulse, severe confusion or agitation, seizures, vomiting, or a very abnormal body temperature. Opioid overdoses typically cause slowed or stopped breathing, pinpoint pupils, and unconsciousness, while stimulant overdoses may cause agitation, a racing heart, high temperature, and seizures. Because the signs differ and an overdose can be life-threatening, you should not wait to be certain; if you are worried someone has overdosed, call emergency services immediately. Acting on suspicion, rather than waiting for certainty, can save a life.
Can you recover from an overdose?
Many people survive overdoses, especially when they receive emergency medical care in time, and modern overdose treatment is often very effective when the person reaches care quickly. This is exactly why getting help immediately matters so much, because prompt treatment greatly improves the chance of survival and recovery. However, overdoses can cause lasting harm or death, particularly if treatment is delayed, so they should never be taken lightly. Surviving an overdose is also an important opportunity to get further help, since an overdose is often a sign of a serious problem with substances or a mental health crisis. Addressing the underlying addiction or mental health difficulties offers the best protection against future overdoses and a path to lasting recovery.
What should happen after someone survives an overdose?
After emergency treatment, it is important to address the underlying situation, because an overdose is often a sign of a serious problem. For someone struggling with addiction, an overdose can be a turning point toward seeking treatment, and effective help, including detox, medication-assisted treatment for opioid addiction, therapy, and support, is available. For a deliberate overdose or one linked to a mental health crisis, mental health support is vital. Harm-reduction measures, such as having naloxone available, not using alone, and being aware of reduced tolerance after a break from use, help prevent future overdoses. Surviving an overdose is an opportunity to get the help that can prevent it happening again and support lasting recovery, so reaching out for help afterward is a crucial step.
Sources
Substance Abuse and Mental Health Services Administration (SAMHSA). Naloxone and Overdose Prevention. https://www.samhsa.gov/
Centers for Disease Control and Prevention (CDC). Overdose Prevention and Response. https://www.cdc.gov/overdose-prevention/
National Institute on Drug Abuse (NIDA). Naloxone DrugFacts. https://nida.nih.gov/publications/drugfacts/naloxone
World Health Organization (WHO). Opioid Overdose. https://www.who.int/news-room/fact-sheets/detail/opioid-overdose
National Health Service (NHS). Overdose: First Aid and Treatment. https://www.nhs.uk/
American Heart Association. CPR and Emergency Care. https://www.heart.org/
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