# How Long Does It Take to Detox from Heroin? | Sierra > Learn how long it takes to detox from heroin. Get insights on heroin addiction treatment options and support for recovery. [Home](/) / [Blog](/blog/) / Drugs Drugs # How Long Does It Take to Detox from Heroin? Learn how long it takes to detox from heroin. Get insights on heroin addiction treatment options and support for recovery. Written byJustin CataneSenior Content Writer Clinically reviewed by[Nerea Encinas Sánchez](/clinical-team/)Director of the centre, MSc General Health PsychologyRegistered psychologist, COPAO AO13857 Checked for clinical accuracy on 18 August 2025. Next review due August 2026. This article is general information and is not a substitute for advice about your own situation. For opioid withdrawal syndrome, onset is typically 8 to 24 hours after the last use, with symptoms lasting around 4 to 10 days. Early symptoms such as muscle aches, anxiety and cravings can appear at 6 to 12 hours, intensify between 24 and 48 hours, and peak in intensity at 1 to 3 days. From days 4 to 7 the intensity subsides, and after a week milder symptoms can still come and go. ## Before you go further, a safety note Opioid tolerance falls quickly after any break in use, which is what makes returning to a previous dose so dangerous. Never use alone. If you think someone may have overdosed, call 999 in the UK or 112 anywhere in Europe straight away and stay with them until help arrives. If you are dependent on opioids, speak to a doctor before changing or stopping anything. Heroin is an incredibly dangerous drug with a high potential for abuse. Many people who try heroin quickly get addicted to it. When this happens, it's important to go through a medical detox to be stable enough for the next steps of treatment. Understanding the withdrawal timeline is crucial to making the process safer and more manageable. ## How Long Does Heroin Detox Treatment Last? One of the first steps to breaking free from heroin addiction is detoxification. This is the time when your body will be rid of the drug so that you can function without its presence. For opioid withdrawal syndrome, the onset is typically 8 to 24 hours after the last use, with the withdrawal symptoms lasting around 4 to 10 days. However, the timeline will vary from person to person. Here's what you can generally expect after your last heroin use: - 6 to 12 Hours: Early symptoms of withdrawal will begin, and you may start to experience muscle aches, anxiety, and intense cravings for heroin. - 24 to 48 Hours: The symptoms will start to intensify, and you might experience more pain and mood swings due to the drug's absence from your body. - 1 to 3 Days: Acute withdrawal symptoms peak in intensity, and the symptoms can be difficult to manage without professional help. - 4 to 7 Days: The intensity of symptoms may start to subside, but you may still experience some physical discomfort. - After 7 Days: While most symptoms may have subsided and will lessen, they can persist and appear from time to time. Withdrawal is managed medically, and where it is needed it is completed before the residential programme begins. ## What Is Heroin Withdrawal? Heroin withdrawal happens when a person dependent on heroin stops using the drug. Since heroin is highly addictive, your body will slowly get used to the drug's presence. This can make doing daily tasks very difficult without using heroin. Whenever you try to stop the drug, the body reacts by triggering withdrawal symptoms. These symptoms can be very uncomfortable and even life-threatening. Withdrawal from heroin is a very tough time, and it can even get very scary at times. Having the right help available can make this time safer and more manageable. ## Common Heroin Withdrawal Symptoms Here are some common heroin withdrawal symptoms you'll experience after you stop using heroin: - Anxiety - Panic attacks - Depression - Mood swings - Difficulty concentrating - Muscle aches - Sweating - Insomnia - Nausea and vomiting - Rapid heart rate - Low energy levels - Cravings for heroin ## Factors That Affect Heroin Withdrawal Symptoms Withdrawal symptoms will vary for each person. Different factors affect the longevity and intensity of these symptoms, such as: - Duration and Frequency of Use: The longer someone abuses heroin, the more severe the withdrawal is going to be. This is because more long-term chronic use will increase a person's dependence on the drug, so it will be more difficult for them to function normally without heroin. - Purity of Heroin: Pure heroin is more potent, and this means the withdrawal is going to be more intense if you use this kind of drug. The same goes for heroin mixed with other substances. Mixing heroin with other substances can worsen symptoms and lead to more dangerous complications. - Metabolism and Genetics: Genetic differences and metabolic rates can also affect withdrawal. For instance, faster metabolisms may lead to quicker withdrawal onset, while slower metabolisms can prolong the symptoms. Although it's not the main factor that determines the severity of heroin withdrawal, it's still something to consider. - Overall Health: Those who struggle with poor physical health, especially conditions like liver or kidney disease, may face more complications during the withdrawal symptoms. Poor mental health can also make withdrawal more difficult. Depression, anxiety, and other mental health conditions can lead to more intense mood swings and panic attacks. ### Do you think you or someone you love has a problem with heroin? You do not have to be certain before you pick up the phone. One confidential call with a clinician will tell you whether heroin use is something to act on now. [Take the self-assessment](/self-assessment/) [+44 1202 653136](tel:+441202653136) ## How to Safely Detox from Heroin The best way to manage withdrawal symptoms is to go through a medically assisted detox. In this setting, a medical professional will oversee your detox process and provide the necessary support to make detox safer and more comfortable. When you're in an inpatient setting for detox, you'll receive 24/7 medical supervision for your symptoms. Since your body will bear the negative effects of withdrawal, you will also receive hydration and nutritional support. During a medically assisted detox, healthcare professionals can also administer the necessary medication to make the detox process more manageable. Medications such as methadone and buprenorphine help alleviate withdrawal symptoms, reduce cravings, and prevent potential complications. Lastly, since detox can be emotionally difficult, a medically assisted detox provides the proper emotional support needed to get through this time. Professionals can provide therapy and other counselling interventions to address the psychological aspects of withdrawal. ## What Happens After Heroin Detox? After heroin detox, you'll slowly transition into rehab, where you'll go through a structured treatment plan to address heroin addiction and dependence. There are several treatment options available during rehab. Rehab treatment plans consist of therapies that help address and uncover the underlying causes of addiction. You'll learn how to change harmful thought patterns and behaviours and develop healthy coping mechanisms to overcome your addiction symptoms. Holistic therapies are also a part of rehab. These therapies help create a more well-rounded recovery experience. They also help you find healthier ways to cope with the stress and emotions that come with recovery. Rehab can also be inpatient or outpatient. During inpatient treatment, you'll stay at a treatment facility where you'll receive 24/7 medical and psychological support. In outpatient treatment, you'll live at home while attending treatment sessions at a rehab centre. ## Heroin Addiction Treatment at Sierra Recovery Struggling with substance abuse is never easy. It can affect you physically and emotionally. What's even more challenging is that although detox is the most crucial part of recovery, this is the part where many might give up. At Sierra Recovery, we are here to make treatment manageable and recovery attainable. Our team is here to provide safe and comprehensive treatment for those struggling with heroin and other drugs. Contact us today to learn how we can help you build a better life. Get safe and effective heroin addiction treatment today Last reviewed 2026-07-25. Next review 2027-07-25. ### Treating heroin addiction takes more than willpower Three structured group sessions a day, individual therapy, and a seventeen module curriculum. Admission usually within days of the assessment. [See how admission works](/admissions/) [+44 1202 653136](tel:+441202653136) ## Questions people actually ask What does the heroin detox timeline look like? After the last use, early withdrawal symptoms such as muscle aches, anxiety and intense cravings can begin at 6 to 12 hours. Between 24 and 48 hours symptoms intensify, with more pain and mood swings. Acute symptoms peak at 1 to 3 days, ease between days 4 and 7 although some discomfort remains, and after 7 days most have lessened but can still appear from time to time. What affects how long heroin withdrawal lasts? Duration and frequency of use matter most, as longer use builds greater dependence and more severe withdrawal. Purity is also a factor, since purer heroin is more potent, and heroin mixed with other substances can worsen symptoms. Metabolism and genetics shift the onset and length. Poor physical health, especially liver or kidney disease, and poor mental health can complicate the process. What symptoms should I expect during heroin withdrawal? Common symptoms include anxiety, panic attacks, depression, mood swings and difficulty concentrating, alongside muscle aches, sweating, insomnia, nausea and vomiting, a rapid heart rate, low energy and cravings for heroin. They can be very uncomfortable and, in some cases, life-threatening. Having the right help available makes this time safer and more manageable. How can I detox from heroin safely? A medically assisted detox is the safer route. In an inpatient setting you receive 24 hour medical supervision, plus hydration and nutritional support while your body copes with withdrawal. Medications such as methadone and buprenorphine help alleviate symptoms, reduce cravings and prevent complications. Therapy and counselling address the psychological side, which is often the hardest part to face alone. What happens after heroin detox? You transition into rehab, where a structured treatment plan addresses the addiction itself. Therapies help uncover the underlying causes, change harmful thought patterns and build healthier coping mechanisms, while holistic therapies round out the experience. Rehab may be inpatient, where you stay at a facility with 24 hour medical and psychological support, or outpatient, where you live at home and attend sessions. + ## Talk to a clinician today You will speak to our admissions team, English-speaking clinicians who know the programme and the people in it. Callback within 24 hours. Step 1 of 3 Confidential, and no obligation Registered health centre. 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