Soma Overdose: Signs, Dangers, and What to Do
What a Soma (carisoprodol) overdose is, the warning signs, why this muscle relaxant is dangerous, the added risks of mixing it with other drugs, and how to get help.
Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician and Addiction Medicine Specialist, Phuket Island Rehab.
A Soma overdose happens when someone takes too much carisoprodol, the active ingredient in Soma, a prescription muscle relaxant used for short-term relief of muscle pain. Although it is a muscle relaxant rather than an opioid, Soma acts on the central nervous system and can be dangerous in excess, in part because in the body it is broken down into meprobamate, a sedative with its own potential for dependence and toxicity. Signs of a Soma overdose include extreme drowsiness, confusion, loss of coordination, slurred speech, weakness, low blood pressure, a slow or shallow breathing rate, seizures, loss of consciousness, coma, and, in severe cases, death. The danger is greatly increased when Soma is combined with other central nervous system depressants such as alcohol, opioids, or benzodiazepines, which is a common and often fatal combination. Soma is also misused for its sedative, relaxing effects and can cause dependence and addiction, and stopping it suddenly after regular use can cause withdrawal. A Soma overdose is a medical emergency: if you suspect one, call your local emergency number immediately. If misuse or dependence is a concern, help is available and addiction is treatable.
What is a Soma overdose?
Soma is a brand name for the medication carisoprodol, a prescription muscle relaxant used, usually for short periods, to relieve discomfort from acute muscle pain and injury, alongside rest and physical therapy. A Soma overdose occurs when a person takes more carisoprodol than the body can safely handle, whether accidentally, by taking extra doses, or deliberately. Although Soma is a muscle relaxant rather than an opioid painkiller or a classic sedative, it acts on the central nervous system to produce muscle relaxation and a calming, sedative effect, and taking too much can be dangerous and even fatal. An important part of why Soma can be so hazardous is that, in the body, carisoprodol is broken down into meprobamate, a substance that is itself a sedative (once used as an anti-anxiety drug) with its own potential for sedation, dependence, and toxicity. So a Soma overdose involves the effects of both carisoprodol and meprobamate.
This article explains what a Soma overdose is, the warning signs to look for, why this muscle relaxant is dangerous, the added risks of combining it with other drugs, and how to get help. The central message is that Soma, despite being a muscle relaxant, is a genuinely hazardous drug in excess: it depresses the central nervous system, can cause dangerous sedation and, in serious cases, life-threatening effects, and is especially dangerous when combined with alcohol, opioids, or other sedatives. It also has a real potential for misuse, dependence, and addiction, and stopping it suddenly after regular use can cause withdrawal. A suspected Soma overdose is a medical emergency requiring immediate help. Understanding the signs and dangers of a Soma overdose, and knowing that misuse and dependence are treatable, is important for anyone taking this medication or concerned about someone who is.
Signs of a Soma overdose
The signs of a Soma overdose come from excessive depression of the central nervous system by carisoprodol and its sedative breakdown product, meprobamate. Early and common signs include extreme drowsiness and sedation, confusion, dizziness, loss of coordination and unsteadiness, slurred speech, and muscle weakness. As the overdose becomes more severe, signs can include a very low level of consciousness, a slow or shallow breathing rate (respiratory depression), low blood pressure, a fast or irregular heartbeat, and, in some cases, agitation or unusual movements. In serious overdoses, carisoprodol can cause seizures, loss of consciousness, coma, and death, typically from the effects on breathing and the cardiovascular system. Some people may also experience vomiting, and there is a risk of choking if the person is very sedated.
It is important to understand that the severity of a Soma overdose depends on how much was taken, on individual factors, and crucially on whether other substances were also taken. Because Soma’s dangerous effects centre on sedation and depressed breathing, the most worrying signs are those indicating that a person is deeply sedated, cannot be roused, or is breathing slowly, shallowly, or not at all, all of which are medical emergencies. A person who has taken too much Soma may appear extremely drowsy or pass out, and may be difficult or impossible to wake. Because the signs range from drowsiness and confusion to seizures, coma, and stopped breathing, any suspicion that someone has taken too much Soma should be treated seriously and as a potential emergency. Recognising these warning signs, and acting quickly, can be life-saving.
| Severity | Signs |
|---|---|
| Early / common | Extreme drowsiness, confusion, dizziness, slurred speech |
| Coordination | Loss of coordination, unsteadiness, muscle weakness |
| More serious | Slow/shallow breathing, low blood pressure, seizures |
| Severe | Unable to wake, loss of consciousness, coma, death |
| Greatest danger | Combined with alcohol, opioids, or benzodiazepines |
| Also note | Vomiting; risk of choking if heavily sedated |
Why Soma is dangerous and the risks of mixing
Soma is dangerous in overdose because it depresses the central nervous system, and its breakdown product meprobamate adds to this sedative effect and has its own toxicity. In excess, this can slow breathing and depress consciousness to a life-threatening degree, and can cause seizures. But by far the greatest danger arises when Soma is combined with other central nervous system depressants. Taking Soma together with alcohol, opioids (such as prescription painkillers or heroin), benzodiazepines (such as Xanax or Valium), or other sedatives is extremely dangerous, because their depressant effects add together and can cause severe sedation and dangerously slowed or stopped breathing, leading to overdose and death. In fact, carisoprodol is often involved in overdoses in combination with these other drugs, and one well-known dangerous combination of a muscle relaxant, an opioid, and a benzodiazepine has been misused specifically for its powerful sedative high, with a high risk of fatal overdose. This is why Soma must never be combined with alcohol or other sedatives without medical guidance.
Beyond overdose, Soma carries a risk of misuse, dependence, and addiction, which is another reason it is now generally recommended only for short-term use. Because carisoprodol and meprobamate produce sedative, relaxing, and sometimes mildly euphoric effects, some people misuse Soma, taking more than prescribed or taking it to get high or to enhance the effects of other drugs. With regular use, tolerance and physical dependence can develop, and addiction, marked by compulsive use despite harm, can follow. Dependence means that stopping Soma suddenly after regular use can cause a withdrawal syndrome, with symptoms such as anxiety, insomnia, tremor, agitation, and, in severe cases, hallucinations and seizures (reflecting the meprobamate component), so it should not be stopped abruptly after regular use but reduced gradually under medical supervision. The combination of a real overdose danger, especially when mixed with other depressants, and a genuine potential for dependence and addiction, is why Soma, though a muscle relaxant, must be treated with considerable care.
What to do and getting help
A Soma overdose is a medical emergency, and quick action is important. If you suspect that someone has taken too much Soma, especially if they are very drowsy, cannot be woken, are breathing slowly or shallowly, are having a seizure, or have taken it with alcohol or other drugs, call your local emergency number immediately. You can also contact a poison control centre for guidance (in the US, Poison Control: 1-800-222-1222). Do not wait for symptoms to worsen. While waiting for help, if the person is unconscious but breathing, place them on their side in the recovery position to protect their airway, and monitor their breathing. If opioids may also be involved and naloxone is available, it can be given (naloxone reverses opioids but not carisoprodol itself, though it may help if opioids are part of the overdose). Try to find out what and how much was taken, and keep any medicine packaging to show medical staff. In hospital, a Soma overdose is treated with supportive care, and outcomes are best when help is sought early.
Beyond the immediate emergency, if a Soma overdose was linked to misuse, dependence, or an attempt to self-harm, it is important to address the underlying issue. If the overdose was deliberate self-harm, or if the person is having thoughts of suicide, they need prompt, compassionate mental health support. If Soma is being misused or dependence has developed, help is available, and this is a treatable condition. Because stopping Soma suddenly after regular use can cause dangerous withdrawal, coming off it should be done through a medically supervised, gradual reduction. Treatment for Soma misuse and addiction combines safe withdrawal with counselling and behavioural therapies to address the patterns and any underlying issues, support for recovery, and treatment of any co-occurring conditions, such as chronic pain, anxiety, or other substance use, that may be involved. The key messages are that a Soma (carisoprodol) overdose is dangerous and a medical emergency, that the risk is greatly increased by combining Soma with alcohol, opioids, or other sedatives, that Soma can cause dependence and addiction, and that if misuse or dependence is a concern, reaching out for professional help is important and recovery is possible.
Summary
A Soma overdose happens when someone takes too much carisoprodol, the active ingredient in Soma, a prescription muscle relaxant used for short-term relief of muscle pain. Although it is a muscle relaxant rather than an opioid, Soma acts on the central nervous system and can be dangerous in excess, in part because in the body it is broken down into meprobamate, a sedative with its own potential for dependence and toxicity. Signs of a Soma overdose include extreme drowsiness, confusion, loss of coordination, slurred speech, weakness, low blood pressure, a slow or shallow breathing rate, seizures, loss of consciousness, coma, and, in severe cases, death. The danger is greatly increased when Soma is combined with other central nervous system depressants such as alcohol, opioids, or benzodiazepines, which is a common and often fatal combination. Soma is also misused for its sedative, relaxing effects and can cause dependence and addiction, and stopping it suddenly after regular use can cause withdrawal. A Soma overdose is a medical emergency: if you suspect one, call your local emergency number immediately. If misuse or dependence is a concern, help is available and addiction is treatable.
As Dr. Ponlawat Pitsuwan, addiction medicine specialist at Phuket Island Rehab, puts it, “People underestimate Soma because it is just a muscle relaxant. But carisoprodol turns into meprobamate in the body, which is essentially an old-fashioned sedative, and in overdose it can put someone into a coma and stop their breathing. The situation I dread is Soma mixed with an opioid and a benzodiazepine, a combination some people deliberately chase for the sedation, and it kills. It is also genuinely habit-forming, and stopping it abruptly can cause seizures. So I treat Soma with the same seriousness as any sedative. If someone has overdosed, it is an emergency, call for help. And if Soma has become something they cannot stop, that is treatable, with a safe detox and real support.”
Frequently asked questions
How much Soma is an overdose?
There is no single amount that causes an overdose in everyone, because it depends on factors such as the person’s size, tolerance, individual sensitivity, and, crucially, whether other substances are also taken. What is clear is that taking more Soma (carisoprodol) than prescribed risks harm, and that significantly exceeding the prescribed dose can cause a dangerous overdose. The risk is dramatically increased when Soma is combined with alcohol, opioids, benzodiazepines, or other sedatives, so that even amounts that might not be fatal alone can become deadly in combination. Because Soma is broken down into the sedative meprobamate, its depressant effects can be substantial. Rather than trying to work out an exact overdose threshold, the safest approach is to always take Soma exactly as prescribed, only for the short period intended, never take extra, and never combine it with alcohol or other sedatives without medical guidance. If you think someone has taken too much Soma, do not try to judge whether the amount is dangerous yourself; treat it as a potential emergency and seek medical help or contact a poison control centre for guidance.
What are the signs of taking too much Soma?
Signs of taking too much Soma (carisoprodol) come from excessive depression of the central nervous system. Early and common signs include extreme drowsiness and sedation, confusion, dizziness, loss of coordination and unsteadiness, slurred speech, and muscle weakness. As an overdose becomes more severe, signs can include a very low level of consciousness, slow or shallow breathing, low blood pressure, a fast or irregular heartbeat, and sometimes agitation. In serious overdoses, Soma can cause seizures, loss of consciousness, coma, and death, usually from the effects on breathing. Vomiting can occur, with a risk of choking if the person is heavily sedated. The most worrying signs are those showing that a person is deeply sedated, cannot be woken, or is breathing slowly or not at all, which are medical emergencies. Because the danger is greatly increased when Soma is combined with alcohol, opioids, or benzodiazepines, these signs are especially likely and severe with such combinations. If you notice these signs after someone has taken Soma, treat it as a potential emergency and seek help immediately.
Why is mixing Soma with other drugs so dangerous?
Mixing Soma with other drugs is so dangerous because Soma is a central nervous system depressant, and combining it with other depressants multiplies the effect on the body, particularly on breathing. Soma (carisoprodol) and its breakdown product meprobamate slow down the central nervous system; when combined with alcohol, opioids (such as prescription painkillers or heroin), benzodiazepines (such as Xanax or Valium), or other sedatives, the depressant effects add together and can cause severe sedation and dangerously slowed or stopped breathing, leading to overdose and death. Amounts that might not be fatal alone can become deadly in combination. Carisoprodol is frequently involved in overdoses alongside these other drugs, and one particularly dangerous combination of a muscle relaxant, an opioid, and a benzodiazepine has been deliberately misused for its powerful sedative high, carrying a high risk of fatal overdose. This is why Soma must never be combined with alcohol or other sedatives without explicit medical guidance, and why it is important to tell your doctor about all medications you take. The danger of these combinations is one of the most important safety facts about Soma.
Is Soma addictive?
Yes, Soma (carisoprodol) can be addictive, which is one reason it is now generally recommended only for short-term use. Because carisoprodol and its breakdown product meprobamate produce sedative, relaxing, and sometimes mildly euphoric effects, some people misuse Soma, taking more than prescribed or using it to get high or to enhance the effects of other drugs. With regular use, tolerance can develop (needing more for the same effect), along with physical dependence (so the body adapts and stopping causes withdrawal), and addiction can follow, marked by compulsive use despite harm, cravings, and loss of control. Because of the meprobamate component, dependence on Soma resembles dependence on sedatives, and stopping suddenly after regular use can cause a withdrawal syndrome that may include anxiety, insomnia, tremor, agitation, and, in severe cases, hallucinations and seizures. For this reason, Soma should not be stopped abruptly after regular use but reduced gradually under medical supervision. The encouraging message is that Soma misuse and addiction are treatable, through safe withdrawal combined with therapy and support. If you or someone you know is misusing Soma or has become dependent, seeking help is important, and recovery is possible.
What should you do if you suspect a Soma overdose?
If you suspect a Soma overdose, treat it as a medical emergency and act quickly. Call your local emergency number immediately, especially if the person is very drowsy, cannot be woken, is breathing slowly or shallowly, is having a seizure, or has taken Soma with alcohol or other drugs. You can also contact a poison control centre for guidance (in the US, Poison Control: 1-800-222-1222). Do not wait for symptoms to worsen. While waiting for help, if the person is unconscious but breathing, place them on their side in the recovery position to protect their airway, and monitor their breathing in case it slows or stops. If opioids may also be involved and naloxone is available, it can be given. Try to find out what and how much was taken and when, and keep any medicine packaging to show medical staff, as this helps treatment. In hospital, a Soma overdose is treated with supportive care, and outcomes are best when help is sought early. If the overdose was deliberate self-harm, the person will also need mental health support afterwards. Acting fast and seeking professional help is the most important thing you can do.
How is Soma dependence treated?
Soma dependence is treated in a way similar to dependence on other sedatives, beginning with a medically supervised withdrawal, because stopping Soma suddenly after regular use can cause a dangerous withdrawal syndrome, potentially including seizures. During withdrawal, the drug is reduced gradually (tapered) under medical supervision, with monitoring to keep the person safe and manage symptoms; for significant dependence, this may be done in a setting where the person can be closely observed. Once safe withdrawal is achieved, lasting recovery involves counselling and behavioural therapies, which help a person understand and change the patterns driving their use, manage cravings, and address underlying issues, along with support for recovery. Treatment also addresses any co-occurring conditions, such as chronic pain (which may have led to the Soma use and needs to be managed in other ways), anxiety, or other substance use, since Soma is often misused alongside opioids or benzodiazepines. Depending on severity, treatment may be provided through a structured program, sometimes residential. With this combination of safe withdrawal, therapy, and support, people do recover from Soma dependence and addiction. If you or someone you know is dependent on Soma, seeking help is important, and recovery is possible.
Sources
National Library of Medicine (MedlinePlus). Carisoprodol. https://medlineplus.gov/druginfo/meds/a682578.html
Drug Enforcement Administration (DEA). Carisoprodol (Soma) Drug Fact Sheet. https://www.dea.gov/
National Institute on Drug Abuse (NIDA). Prescription Drugs and CNS Depressants. https://nida.nih.gov/research-topics/prescription-drugs
America’s Poison Centers. Poison Control. https://www.poison.org/
Substance Abuse and Mental Health Services Administration (SAMHSA). Substance Use. https://www.samhsa.gov/
U.S. Food and Drug Administration (FDA). Carisoprodol Prescribing Information. https://www.fda.gov/drugs
Soma overdose — key entities and related terms
soma overdose, Soma, soma, carisoprodol, muscle relaxant, meprobamate, central nervous system depressant, sedative, muscle pain, prescription, prescribed, short-term use, dose, too much, overdose, toxicity, extreme drowsiness, sedation, confusion, dizziness, loss of coordination, unsteadiness, slurred speech, muscle weakness, low blood pressure, slow breathing, shallow breathing, respiratory depression, irregular heartbeat, agitation, vomiting, choking, seizures, loss of consciousness, coma, death, alcohol, opioids, benzodiazepines, Xanax, Valium, sedatives, drug combination, holy trinity, misuse, abuse, get high, euphoria, tolerance, dependence, addiction, cravings, compulsive use, withdrawal, withdrawal syndrome, tremor, hallucinations, taper, gradual reduction, medically supervised withdrawal, naloxone, poison control, medical emergency, supportive care, self-harm, suicide, chronic pain, co-occurring, counselling, behavioural therapy, treatment, recovery, support, help, drugs, substance, people, pain, risk, side, symptoms, use, used, may, SAMHSA, NIDA, DEA, FDA, MedlinePlus, Poison Control, Phuket Island Rehab, Dr. Ponlawat Pitsuwan