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Heroin Addiction

Heroin, an addictive opioid, is a major concern today. Knowing how to recognize signs of use and addiction, as well as understanding the side effects on the body and mind, is important. Seeking help for those struggling with addiction is crucial in reducing the harmful effects of this dangerous substance.

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About Heroin Addiction

Perhaps infamous for its likelihood of addiction, heroin is a potent opioid drug without legal medical use. While heroin addiction rates are not as high as those of other opioids, current research suggests a growing number of individuals are becoming addicted to heroin in recent years.

Learn more about the signs of heroin addiction, the potential side effects of using heroin, and what you can do for yourself or a loved one who’s ready to conquer an addiction to heroin.

What Is Heroin?

Heroin is a powerful illicit drug known by street names such as “Black Tar,” “China White,” and “Smack.” It is typically injected but can also be abused by smoking, swallowing, or snorting the drug.

Heroin is an opiate (like morphine and fentanyl). It acts as a central nervous system depressant, meaning it can cause slowed, shallow breathing and a decreased heart rate, which often causes death in its users.

Heroin vs. Other Opioids

Heroin is an illegal opiate made from morphine, a derivative of opium poppy plants. While morphine is a legal prescription drug designed to treat extreme pain, heroin has no recognized medical use.

According to a report by the Substance Abuse and Mental Health Services Administration (SAMHSA), some heroin users start their habit after abusing prescription painkillers (i.e., oxycodone, hydrocodone, morphine).

Once a person develops tolerance after regular opioid use, eventually, their body needs more of the drug to feel any effects. And since heroin can be easier to acquire, some users turn to heroin to continue feeding their opioid dependence.

Another concern is the risk of heroin addicts switching to fentanyl, an even more potent opioid. Some users seek out fentanyl due to its potency (50-100 times stronger than morphine).

Others may ingest fentanyl without their knowledge, as many dealers have begun adding fentanyl to their products.

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Effects of Heroin Abuse

Heroin works like any opiate: it binds to the opioid receptors of your brain. When heroin binds to these receptors, it can create feelings of euphoria, drowsiness, and pain relief. However, heroin can also create a strong physical dependence, ultimately leading to addiction.

Short-Term Effects of Heroin Use

Heroin is incredibly potent (2-5 times stronger than morphine), and heroin dependence can develop quickly. Deadly overdose is not uncommon and is possible even with short-term heroin abuse.

Other side effects from short-term heroin use include:

  • Dry mouth
  • Nausea/vomiting
  • Constipation
  • Itchy or warm sensations of the skin
  • Brain fog
  • Nodding off (i.e., switching in and out of consciousness)

Heroin addicts are also likely to develop substance use disorder and will require some form of treatment and medical intervention to overcome this addiction.

Long-Term Effects of Heroin Use

Abusing heroin over a long period increases the risk of overdose, causes additional health problems, and wreaks havoc over a person’s life in general.

Heroin addicts become more likely to take risks and make poor decisions, such as sharing needles, thus exposing them to Hepatitis B, Hepatitis C, and other bloodborne diseases like HIV/AIDS.

Additional long-term effects of heroin addiction can include:

  • Kidney disease
  • Collapsed arteries or veins
  • Developing wounds or abscesses at needle sites
  • Insomnia
  • Heart problems, including infection
  • Liver disease
  • Mental disorders

Warning Signs of Heroin Addiction

Several indicators can suggest a person is abusing heroin.

Some warning signs of heroin abuse and addiction include:

  • Drug paraphernalia (i.e., needles, syringes, spoons)
  • Sudden or new issues with money
  • Secretive behavior; self-isolation
  • Physical signs of heroin use, such as trackmarks
  • New friend groups (particularly those also inclined toward drug abuse)

Heroin Overdose

A heroin overdose typically causes slowed breathing, confusion, and unconsciousness.

Healthcare providers also point out that an overdose of heroin doesn’t always occur as a sudden event; sometimes, signs of opioid overdose can be observed even hours beforehand.

Other symptoms of a heroin overdose will include:

  • Confusion or agitation
  • The person may not make sense when speaking
  • Drowsiness
  • A blueish tint to the skin, especially around the eyes and mouth
  • Vomiting or nausea
  • Constricted pupils
  • Stomach cramps
  • Headaches

If you suspect a friend or loved one is experiencing a heroin overdose: 

  1. Immediately call 911 and report the overdose
  2. Administer naloxone (such as NARCAN®) to reverse the overdose
  3. Turn the victim on their side to encourage normal breathing
  4. Stay with the victim until emergency help arrives

 Many states also have “Good Samaritan Laws,” which protect the overdose victim and the person who reports the overdose from criminal charges. It is always best to report the overdose and stay with the victim until help arrives.

The FDA has approved two types of naloxone nasal sprays—NARCAN® and KLOXXADO®—which can be acquired for free thanks to a federal grant that passed with the support of the FDA.

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Heroin Statistics

According to the CDC, more than 28% of opioid deaths in 2019 involved heroin. That number of heroin-related deaths is five times higher than in 2010.

The National Institute on Drug Abuse (NIDA) also reports a steady increase in the number of people engaging in heroin use since 2007. One theory is that individuals addicted to prescription painkillers are switching to the cheaper, easier-to-find opiate heroin.

While heroin overdose deaths have decreased in recent years, death from opioid overdose—likely due to fentanyl, both directly and when mixed into other drugs—continues to be a life-threatening issue.

An estimated 68% of ALL drug overdose deaths in 2022 involved synthetic opioids.

Heroin Addiction Treatment

Treatment for heroin addiction is available, and recovery is possible. If you or a loved one is struggling with heroin abuse or any addiction, the recovery process is similar to other types of drug use.

With the help and support of medical professionals, a heroin addict can achieve a drug-free life.

Medical Detox

A medical detox is often the first step in treating a heroin addiction. During medical detox, your body will adjust to a state of no longer having heroin in your system.

Heroin detox can occur at a facility or on an outpatient basis, depending on the severity of the addiction and the potential side effects you might experience as a result.

Heroin withdrawal symptoms include:

  • Pain in the muscles; bone pain
  • Trouble sleeping
  • Diarrhea
  • Vomiting
  • Strong cravings for heroin
  • Restless leg syndrome (sensations of uncontrollable leg movements)
  • Cold flashes and goosebumps

While most symptoms of heroin withdrawal are NOT life-threatening, the early stages can be uncomfortable, so the risk for relapse is high.

The relapse itself is very dangerous, as individuals who quit the detox process and return to heroin abuse usually have already developed a lower tolerance for heroin; if they try to use the same amount they were used to, they have a high potential to overdose.

Therefore, before quitting heroin use, it is strongly recommended that you seek medical advice from your primary care doctor or a reputable addiction healthcare professional of some kind.

Medication-Assisted Treatment (MAT)

Many heroin users rely on Medication-Assisted Treatment (MAT) to help them safely detox from their heroin addiction. This treatment provides the user with a prescribed medication that will decrease the effects of withdrawals.

The most commonly used MAT drugs for heroin addiction include:

  • Buprenorphine-naloxone
  • Naltrexone
  • Methadone

Of these listed medications, only methadone and buprenorphine-naloxone decrease withdrawals; however, all three have been shown in studies to reduce cravings. (The naltrexone does nothing for withdrawal symptoms but does reduce cravings.)

Heroin Rehab Programs

For many individuals addicted to heroin, entering some heroin rehab program is usually recommended due to the intense nature of this addiction.

The heroin rehab program you need will depend on multiple factors, including:

  • Length of the heroin addiction
  • Any additional drugs being used (i.e., polydrug use)
  • Previous substance abuse history (including any previous rehab participation)

An inpatient rehab program is a residential facility where the addict will live for 1-6 months and receive treatment 24/7. Inpatient rehabilitation includes detox support and behavioral therapy to assist with getting sober and continuing on that path.

Doctors often recommend residential inpatient drug rehab programs for heroin addiction issues that require constant monitoring.

Alternatively, a Partial Hospitalization Program (PHP) allows patients to visit a treatment center for intense care without requiring residency. A PHP focuses on improving both the behavioral health of the addict as well as their physical health.

Finally, an Intensive Outpatient Program (IOP) offers the lowest intensity of care, usually involving a 15-20 hour weekly commitment (or less). The recovering heroin addict will receive support in the form of therapy alongside additional assessments and treatment to manage their addiction.

Supporting a Loved One with a Heroin Addiction

Heroin addiction is difficult for everyone involved—from the addict themselves to their family and loved ones. If someone you care about is struggling with a drug addiction like heroin, there are also resources for you to receive support to help you through this process.

Programs such as Al-Anon are available specifically for the family and friends of those who have been negatively impacted by a loved one’s addiction, whether the addict is in recovery or not.

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Get Help for Heroin Addiction

It’s never too late to get help for a heroin addiction. Find treatment centers in your area by calling SAMHSA’s national helpline 24/7 at 1-800-662-4357 (HELP). You can also check out their online treatment locator for similar information.

Consider speaking with your doctor for treatment recommendations based on your unique circumstances and needs.

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FAQ's About Heroin Addiction

What are the signs of heroin use?

Signs that someone is under the influence of heroin may include small pupils, drowsiness, itchy skin, runny nose, or watery eyes. A heroin user may become secretive and concerned about money as their life will begin to revolve around acquiring the drug.

In addition, they may show physical signs of intravenous drug use, such as track marks or abscesses near veins.

What does heroin look like?

Heroin in its purest form comes as a white powder but can also be brown, beige, or even black (i.e., “black tar” heroin) and look like sticky goo.

How does heroin affect the body?

Heroin is an opioid, which means it can cause:

  • Drowsiness
  • Euphoria
  • Relaxation

However, as it is also a central nervous system depressant, heroin can significantly decrease heart rate and a person’s breathing. These dangerous side effects often lead to overdose.

Why are opioids addictive?

Opioids (like heroin or fentanyl) are addictive because they effectively trigger dopamine release in the brain. This flood of dopamine feels nice, and users often try to recreate the sensations they experience after using these drugs.

The brain quickly becomes reliant on the flood of feel-good chemicals, rapidly leading to physical dependence—and thus, addiction is soon to follow.

Kent S. Hoffman, D.O. is a founder of Addiction HelpReviewed by:Kent S. Hoffman, D.O.

Chief Medical Officer & Co-Founder

  • Fact-Checked
  • Editor

Kent S. Hoffman, D.O. has been an expert in addiction medicine for more than 15 years. In addition to managing a successful family medical practice, Dr. Hoffman is board certified in addiction medicine by the American Osteopathic Academy of Addiction Medicine (AOAAM). Dr. Hoffman has successfully treated hundreds of patients battling addiction. Dr. Hoffman is the Co-Founder and Chief Medical Officer of and ensures the website’s medical content and messaging quality.

Jessica Miller is the Content Manager of Addiction HelpWritten by:

Editorial Director

Jessica Miller is the Editorial Director of Addiction Help. Jessica graduated from the University of South Florida (USF) with an English degree and combines her writing expertise and passion for helping others to deliver reliable information to those impacted by addiction. Informed by her personal journey to recovery and support of loved ones in sobriety, Jessica's empathetic and authentic approach resonates deeply with the Addiction Help community.

  1. Centers for Disease Control and Prevention. (2023a, August 8). Heroin. Centers for Disease Control and Prevention.
  2. Centers for Disease Control and Prevention. (2023b, August 22). Drug overdose deaths. Centers for Disease Control and Prevention.
  3. Hosztafi, S. (n.d.). [heroin addiction]. Acta pharmaceutica Hungarica.
  4. National Institute on Drug Abuse. (2023, March 3). What can be done for a heroin overdose?. National Institute on Drug Abuse.
  5. U.S. Department of Health and Human Services. (2022, March 22). What effects does heroin have on the body?. National Institutes of Health.

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