Bring this list with you each time you visit a doctor or if you are admitted to the hospital. Before you give a dextromethorphan product to a child, check the package label to find out how much medication the child should receive. Ask the child’s doctor if you don’t know how much medication to give the child.
Prolonged use of DXM leads to significant changes in brain structure and function. Dextromethorphan impacts neurotransmitters by altering their balance and function in the brain, primarily by affecting serotonin and NMDA receptors. This interaction leads to altered perception, mood changes, and hallucinations, particularly when used in high doses or abused. Dextromethorphan (DXM) affects the brain primarily by altering neurotransmitter activity, particularly within the brain’s reward and cognitive pathways.

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DXM is known for its high margin of safety when it’s used by itself in moderation and under optimal set and setting. In general, a rule of thumb for recreational use is to wait at least two weeks before another DXM trip. High doses carry the most psychological and physiological risk, so users should never exceed 15 mg/kg. Heavy, frequent use carries the possibility of neurotoxicity as well as the development of tolerance and psychological dependence. In users who are dependent, stopping DXM abruptly can result in withdrawal symptoms such as fatigue, apathy, flashbacks, constipation, insomnia, and anhedonia. Dextromethorphan (DXM) is a common component of combination cold medications that has become a popular drug of abuse for young adults.
What Are Dextromethorphan’s Side Effects?
Early recognition and comprehensive treatment are essential for recovery. If you’re concerned about law enforcement getting involved, you don’t need to mention the substances used over the phone. Just be sure to tell them about specific symptoms so they can send the appropriate response.If you’re caring for someone else, get them to lay slightly on their side while you wait. Have them bend their top knee inward if they can for added support. This position will keep their airways open in case they begin to vomit.
- If you know the opioids are out of your system you should be fine (be safe and be extra sure, always take a day or 2 buffer to make sure) but just never combine them.
- Dextromethorphan is the only cough suppressant available as an over-the-counter drug without a prescription.
- Read on to learn more about DXM, its effects, and how to recognize when someone is misusing it.
- When exceeding approved dosages, dextromethorphan acts as a dissociative hallucinogen.
- But the concern in the past had been about the alcohol and codeine in cough and cold products.
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Trends in over-the-counter substance misuse are often less well-studied than prescription or illicit drug use. However, some data can shed light on the prevalence of DXM abuse. When people misuse DXM in order to get high, they take massive doses well above the recommended daily limit. Mixing DXM with other drugs can have unpredictable effects and increase the risk of harm. There are websites that claim to offer DXM powder for sale, provide instructions on the extraction of DXM from OTC products, and abusers’ descriptions of their “trips”.
Recreational Use Of Dextromethorphan
- In most cases, it takes up to a week to halve the tolerance, and 1–2 weeks for it to fully reverse.
- In just 2 minutes, you can speak with an admissions specialist, verify your insurance, and explore treatment options that work for you.
- The experience peaks 1.5–3 hours after onset, and lasts between 4–8 hours.
- In most cases, intravenous naloxone, an opioid antagonist, is used to treat an overdose.
- Addiction Resource does not favor or support any specific recovery center, nor do we claim to ensure the quality, validity, or effectiveness of any particular treatment center.
The recreational use of DXM appeared to be highest among teens in the early-to-mid 2000s and has since declined significantly, following purchasing restrictions and awareness campaigns. The 2019 Monitoring The Future survey conducted by the National Institute on Drug Abuse (NIDA) found that 2.8% of teens reported past-year recreational use of DXM-containing cough syrup. These rates have decreased by almost half since 2006, when the Monitoring the Future survey reported that 5.4% of teens used OTC cough syrup recreationally in the past year. Regular users are known to develop tolerance to DXM’s effects, where increasingly larger doses are required to attain the same effects. Tolerance is more likely to develop when DXM is used frequently and in large amounts.
The Fourth Plateau
Some users report a DXM hangover the next day, while others describe a positive afterglow that can last up to a few days. DXM overdoses are not usually life-threatening, but they are medical emergencies. In most cases, intravenous naloxone, an opioid antagonist, is used to treat an overdose. Additionally, DXM acts as a nicotinic acetylcholine antagonist, a sigma-1 receptor agonist, and nonselective serotonin-norepinephrine reuptake inhibitor. Agonism of the sigma receptors is responsible for DXM’s antitussive properties, and may contribute in part to its potential antidepressant action. As with all medications, the cost of dextromethorphan oral forms can vary.
Dextromethorphan Side Effects

With the right medication in your medicine cabinet, you can face cold and flu season with confidence, knowing relief is just a dose away. Dextromethorphan (DXM) addiction is a type of substance use disorder characterized by the compulsive misuse of DXM, a common ingredient in over-the-counter cough medications. Dextromethorphan is an active ingredient in many over-the-counter cough and cold medications, and many people abuse it for its psychoactive effects rather than its intended medicinal purpose.
What’s The Dose Of DXM? (DXM Dosage Calculator)

I want to cover the prescription drug interactions first as I want to seriously catch anyone at risk before they put themselves in a harmful situation. Taking it after the expiry date may lead to serious side effects. Therefore, before taking any medicine, please check the expiry date, which is printed on the back of the pack, or consult with your pharmacist or doctor in case of any doubts. Since cough medicines are taken only if required, you will not be on a dosing schedule.

Dextromethorphan Is Effective For Which Type Of Cough?
Mild side effects of many drugs may go away within a few days to a couple of weeks. But if they become bothersome, talk with your doctor or pharmacist. Like most drugs, dextromethorphan may cause mild to serious side effects. This section describes some of the more common side effects dextromethorphan may cause. Always tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. The most common side effects of dextromethorphan are listed below.
DXM reduces the threshold for coughing without affecting other important functions like ciliary movement (the tiny hairs in the lungs that clear out phlegm and bacteria). Any dose can lead to physical dangers such as heatstroke, respiratory depression (breathing that’s become too slow), or liver damage. Ketamine is about 2 or 3 times as potent in terms of dose compared to DXM. High-dose DXM (especially plateau 4) can peak for several hours, and leave lasting effects up to 2 weeks after the initial dose. Most people who reach this plateau don’t report the experience as being positive. It can produce terrifying or uncomfortable visions that are very difficult to get out of.
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Also tell them about any herbs, vitamins, and supplements you use. Dextromethorphan is a generic drug, which means it’s an exact copy of the active ingredient in a brand-name medication. The brand-name medications that dextromethorphan is based on are Delsym and Robitussin Long-Acting CoughGels.

Like other dissociative anesthetics, DXM is an NMDA antagonist but differs in that it also acts as a sigma receptor agonist and serotonin-norepinephrine reuptake inhibitor. It was approved by the FDA for medical use in 1953 and began to see recreational use by the next decade. Dextromethorphan comes alone and in combination with antihistamines, cough suppressants, and decongestants. Ask your doctor or pharmacist for advice on which product is best for your symptoms. Check nonprescription cough and cold product labels carefully before using 2 or more products at the same time.
This can stop your lungs from exchanging oxygen and carbon dioxide, which is medically known as respiratory depression. The effects usually wear off within a day or so, but there are a lot of factors that influence how long you’ll feel the effects. Healthline does not endorse the illegal use of any substances. However, we believe in providing accessible and accurate information to reduce the harm that can occur when using. The NMDA receptors act as a gate for the transmission of information around the brain.