Signs & Symptoms of Methamphetamine (Meth) Overdose

Methamphetamine is a synthetic stimulant with a high potential for addiction. Commonly known as “meth” or “crystal meth,” this lab-made drug is classified as a Schedule II stimulant by the U.S. Drug Enforcement Administration (DEA). While it’s medically approved for the treatment of attention deficit hyperactivity disorder (ADHD) and obesity, meth is often misused illegally.1

Illicit use is associated with a high risk of meth overdose.1 According to the U.S. Centers for Disease Control and Prevention (CDC), meth is the second most commonly found drug in overdose fatalities.1 Read on to learn more about methamphetamine overdose signs, methamphetamine overdose symptoms, and how to start your recovery journey at our rehab facility in Kansas City.

What Is a Methamphetamine Overdose?

A crystal meth overdose happens when someone takes more of the drug than their body can process.1 High doses of methamphetamine increase your body temperature to dangerous levels, resulting in strokes, heart attacks, convulsions, and sometimes death.2 People can overdose on methamphetamine alone or from a combination of the drug and other substances.1

Signs & Symptoms of Methamphetamine Overdose

There are various recognizable crystal meth overdose signs and symptoms. Methamphetamine causes short-term effects, including euphoria, increased blood pressure, elevated body temperature, dilated pupils, and increased heart rate. When you take too much, these effects can be heightened to lethal levels. Here are some common meth overdose symptoms and signs3:

• Chest pain
• Agitation
• Heart attack
• Coma or unresponsiveness
• Difficulty breathing
• Irregular or stopped heartbeat
• Very high body temperature
• Kidney damage and possibly kidney failure
• Stroke
• Seizures
• Paranoia
• Severe stomach pain

How to Help Someone Overdosing on Meth

A methamphetamine overdose is a medical emergency that should be addressed immediately to prevent death. Surviving a meth overdose often comes down to how much of the drug the person took and how quickly they receive meth overdose treatment. The faster someone gets medical help, the more positive their recovery outcomes may be. If someone is exhibiting crystal meth overdose symptoms, you should3:

• Call 911 immediately.
• Notify emergency personnel of any helpful information (i.e., what substances the person took, how much, how it was taken, the person’s age and weight).
• Stay with the person until first responders arrive.

Meth Overdose Causes and Risk Factors

While you can experience a meth overdose from simply taking too much of the drug, there are several other meth overdose risk factors. One of the most common meth overdose dangers is mixing the drug with heroin or synthetic opioids, like fentanyl. Some mix these drugs on purpose, but others may be unaware.1

Meth and opioids affect the body in different ways. Meth increases your heart rate and blood pressure, while opioids slow down your breathing. It may seem that using the two together would balance the effects of each. Instead, mixing the two drugs can modify or mask the symptoms of one or both. This may lead you to think that neither substance is producing the desired effect and cause you to take more, which can lead to overdose.4

Here are some other meth overdose causes and risk factors:

• Mixing meth with other stimulant drugs, such as cocaine, ecstasy, or other amphetamines5
• Using meth with other substances, including benzodiazepines and alcohol5
• Injecting meth6
• Advanced age7
• Having kidney issues7

Risk of Fentanyl Laced Meth

Much of the illicit drug supply is laced with fentanyl.8 Fentanyl is a synthetic opioid that’s 100 times more powerful than morphine.8 Since meth is often made in clandestine labs, its purity and contents are typically unknown.1 That said, you may be unintentionally using fentanyl when taking meth.1

Fentanyl’s potency increases the risk of overdose.1 Between 2010 and 2021, the number of overdose deaths involving fentanyl and stimulants, like meth, grew rapidly.9 According to a 2023 study, this trend is on track to represent the largest component of the overdose crisis in the near future.9

Experts recommend administering Narcan (naloxone) because of these risks.1 Narcan is an opioid overdose reversal medication that can save lives.10 If you suspect someone is overdosing on fentanyl-laced meth, administering Narcan can block the effects of opioids within two to three minutes.10 It’s crucial to note that Narcan only works for opioid overdoses and won’t help someone overdosing on just meth alone.10

How to Prevent a Methamphetamine Overdose

While overdose is always a risk when using meth, harm reduction strategies can help lower the likelihood. Harm reduction focuses on lessening the damaging consequences of substance use using a person-centered, judgment-free approach. With harm reduction, you can access materials and services to protect yourself, even if you’re not quite ready to start recovery.11

The following harm reduction strategies can reduce the chances of meth overdose:

• Test your drugs with fentanyl testing strips before use11
• Always use with someone present12
• Pace yourself and start with low doses12
• Avoid mixing meth with other substances, including alcohol, opioids, and other stimulants5

Methamphetamine Addiction Treatment in Kansas City

Treatment for methamphetamine addiction is available at Empowered Recovery Kansas City. Our facility offers a personalized approach to help you overcome meth addiction and improve your overall wellness. We have multiple levels of addiction treatment, including partial hospitalization programs (PHPs), intensive outpatient programs (IOPs), and standard outpatient care.

Starting treatment can seem challenging, but our admissions team is here to simplify the process. We can answer any questions about going to rehab, including paying for addiction treatment. Whether you’re using insurance for rehab or are curious about other payment options, we’ll work with you to find the best plan for your recovery journey. We can help you explore different programs and choose the recovery path that’s right for you.

If you or a loved one is ready to seek treatment for meth addiction, contact Empowered Recovery Kansas City to verify your insurance benefits and start your journey to a happier, healthier life.

References

1. National Institute on Drug Abuse. (2024). Methamphetamine. Retrieved on January 12, 2026, from https://nida.nih.gov/research-topics/methamphetamine#hiv-hepatitis
2. U.S. Drug Enforcement Administration. (2020). Methamphetamine. Retrieved on January 12, 2026, from https://www.dea.gov/sites/default/files/2020-06/Methamphetamine-2020_0.pdf
3. MedlinePlus.gov. (2025). Methamphetamine overdose. Retrieved on January 12, 2026, from https://medlineplus.gov/ency/article/007480.htm
4. U.S. Centers for Disease Control and Prevention. (2024). Polysubstance Use Facts. Retrieved on January 12, 2026, from https://www.cdc.gov/stop-overdose/caring/polysubstance-use.html
5. Alcohol and Drug Foundation. (2025). Polydrug use. Retrieved on January 12, 2026, from https://adf.org.au/reducing-risk/polydrug-use/
6. Roy, É., Arruda, N., Bruneau, J., & Jutras-Aswad, D. (2016). Epidemiology of Injection Drug Use: New Trends and Prominent Issues. Retrieved on January 12, 2026, from https://pmc.ncbi.nlm.nih.gov/articles/PMC4813418/
7. Patel, P., & Saadabadi, A. (2025). Methamphetamine. Retrieved on January 12, 2026, from https://www.ncbi.nlm.nih.gov/books/NBK535356/
8. U.S. Drug Enforcement Administration. (2024). Fentanyl. Retrieved on January 12, 2026, from https://www.dea.gov/sites/default/files/2025-01/Fentanyl-Drug-Fact-Sheet.pdf
9. Friedman, J., & Shover, C. (2023). Charting the fourth wave: Geographic, temporal, race/ethnicity, and demographic trends in polysubstance fentanyl overdose deaths in the United States, 2010–2021. Retrieved on January 12, 2026, from https://onlinelibrary.wiley.com/doi/10.1111/add.16318
10. U.S. Centers for Disease Control and Prevention. (2025). Lifesaving Naloxone. Retrieved on January 12, 2026, from https://www.cdc.gov/stop-overdose/caring/naloxone.html
11. U.S. Centers for Disease Control and Prevention. (2025). OD2A Case Study: Harm Reduction. Retrieved on January 12, 2026, from https://www.cdc.gov/overdose-prevention/php/od2a/harm-reduction.html
12. Commonwealth of Massachusetts. (n.d). Opioid Overdose Risk Factors. Retrieved on January 12, 2026, from https://www.mass.gov/info-details/opioid-overdose-risk-factors