Cannabis is one of the most widely used plants in the world - for relaxation, creativity, focus, and more. For many people, it’s a positive part of life, However, regular or high-frequency use can lead to temporary changes in how the brain and body respond to THC, the main psychoactive compound in cannabis.
If you’re taking a tolerance break, cutting down, or simply taking a break from cannabis use for health, travel, or mental clarity, you might notice some withdrawal from marijuana – and that’s completely normal. Some people choose to stop completely, which can lead to withdrawal symptoms as the body adjusts to full abstinence from cannabis.
Understanding the symptoms and timeline of marijuana withdrawal can help you manage the experience, reduce discomfort, and return to balanced, mindful use if and when you choose to. This article will walk you through why withdrawal happens, how long it lasts, and what support is available in the UK.
Introduction: What is Marijuana Withdrawal?
Marijuana withdrawal, also known as cannabis withdrawal, refers to the range of physical and psychological symptoms that can occur when someone stops or significantly reduces their marijuana use after a prolonged period of regular or dependent use. These symptoms can vary from mild to severe and often include irritability, anxiety, sleep disturbances, decreased appetite, and mood changes. For many, these uncomfortable withdrawal symptoms are a natural response as the body and mind adjust to the absence of cannabis. Understanding marijuana withdrawal is essential for anyone considering quitting or cutting back, as it helps set realistic expectations and prepares individuals to manage the challenges that may arise during the withdrawal process.
Why Withdrawal from Marijuana Occurs
Over time, frequent cannabis use can lead to physical adaptation. Using potent marijuana, such as high-THC strains, may increase the likelihood or severity of withdrawal symptoms. The body becomes accustomed to the presence of THC, and when it’s suddenly reduced or removed, there’s a short-term period of imbalance – this is what we refer to as withdrawal.
What’s Happening Inside the body?
CB1 Receptors: The brain’s endocannabinoid receptors, particularly CB1, become less sensistive over time with regular THC exposure.
Neurochemistry: THC indirectly influences sopamine and serotonin systems, which can affect mood, sleep, and appetite. When THC is removed, the brain temporarily struggles to regulate these systems on its own.
Stored THC: THC is fat-soluble, meaning it can linger in the body and be slowly released, affecting the length and intensity of withdrawal.
According to DSM-5, cannabis withdrawal syndrome is recognised condition that can occur in individuals who use cannabis regularly and then stop abruptly or reduce use significantly (DSM-5 refers to the Diagnostic and Statistical Manual of Mental Disorders, which provides the official criteria for this condition).
Understanding Cannabis Use and Dependence
Cannabis use and dependence can affect people in different ways, but regular or heavy cannabis use increases the risk of developing cannabis use disorder. This use disorder is characterized by symptoms such as using more cannabis than intended, spending a lot of time obtaining or using cannabis, and continuing use despite negative consequences in daily life. People with cannabis use disorder may also experience cravings and find it difficult to cut down or stop, even if they want to. Treatment for cannabis use disorder often involves behavioral therapies and, in some cases, medications. Addressing the underlying issues—such as stress, mental health concerns, or social factors—that contribute to problematic cannabis use is a key part of recovery.
Common Symptoms of Withdrawal from Marijuana
Not everyone experiences the same symptoms, but some are more common than others. Common physical symptoms of marijuana withdrawal include those listed below. Symptoms typically begin 24-72 hours after reducing or stopping cannabis use[1].
Category | Symptoms |
|---|---|
Mood | Irritability, anxiety, low mood, mood swings |
Sleep | Insomnia, vivid dreams, restlessness |
Physical | Sweating, chills, headaches, shakiness |
Appetite | Decreased appetite, mild nausea |
Cravings | Strong desire to use cannabis again |
In addition to these common physical symptoms, less common physical symptoms such as chills, headaches, stomach pain, and muscle tension can also occur. Some individuals may experience weight loss as a result of decreased appetite during withdrawal.
Additional reported experiences include:
- Fatigue or mental fog
- Muscle tension or physical tension
- Emotional sensitivity or tearfulness
These symptoms usually peak within the first week and gradually subside after 10-14 days. For some people, especially those taking longer tolerance breaks or quitting after long-term use, mild effects can last up to four weeks[1].
How Long Does Withdrawal from Marijuana Last?
Naturally, the duration of withdrawal depends on the individual and numerous circumstances, but here’s a general timeline. Most symptoms of cannabis withdrawal syndrome tend to peak within one week of stopping or reducing cannabis use:
Time Frame | What To Expect |
|---|---|
Days 1-3 | Anxiety, sleep dirsuption, mild nausea or sweating |
Days 4-7 | Peak symptoms: cravings, mood swings, insomnia |
Week 2 | Symptoms easing, appetite returns, sleep may still be unsettled |
Weeks 3-4 | Residual symptoms (any) usually improving steadily |
The length and intensity of cannabis withdrawal symptoms can vary considerably from person to person. Factors such as how often and how much cannabis is used, the method of consumption, and an individual’s overall health all play a role. Generally, cannabis withdrawal symptoms may last from a few days up to several weeks, with the most severe symptoms typically appearing within the first week after stopping. While these symptoms can be uncomfortable and challenging, it’s important to remember that cannabis withdrawal is not life threatening. Most symptoms gradually improve with time, and support is available to help manage the process.
Durarion varies depending on:
- Frequency and volume of use
- THC potency: Use of more potent marijuana products, especially those with higher THC concentrations, can lead to more intense or prolonged withdrawal symptoms
- Individual health and lifestyle
- Use of other substances (like tobacco or alcohol)[2].
What Happens During Withdrawal from Marijuana?
The body’s internal systems are adjusting to life without THC. While this isn’t dangerous for most, it can certainly feel uncomfortable – especially for those who aren’t expecting it. Many people experience unpleasant withdrawal symptoms, which can include both physical and psychological effects.
- Sleep Cycle Reset: Many people report trouble falling or staying asleep, and vivid or unusual dreams. Some individuals report disturbing dreams or strange dreams during withdrawal.
- Mood Swings: Irritability, anxiety, and even mild depression are common.
- Appetite Changes: You may notice a decrease in appetite or changes in eating habits.
What’s Going On:
Mood Regulation: The body is recalibrating dopamine and serotonin levels, leading to emotional ups and downs.
Sleep Cycle Reset: THC often suppresses REM sleep, so vivid or unusual dreams can return during withdrawal. Sleep problems, such as insomnia and difficulty staying asleep, are common during marijuana withdrawal.
Appetite Fuctuations: Cannabis Influences hunger hormones like ghrelin, which may dip when THC is reduced.
Stress Response: Irritability and anxiety are common as cortisol levels fluctuate.
Harm reduction tips for easing symptoms:
Sleep hygiene: Go to bed at the same time every night, reduce screen time, use calming music or a warm bath to wind down.
Eat well: Even if your appetite has changed, keep it to small, nutritious meals.
Mindfulness or breathing techniques: These can help reduce stress and manage cravings.
Talk to someone: Whether a friend, support group, or professional, talking helps. If you experience severe or persistent withdrawal symptoms, seeking professional help may be beneficial.
Stay active: Light exercise like walking can reduce anxiety and boost your mood[3].
Neurobiological Evidence and Treatment Approaches
Scientific research has shown that cannabis withdrawal is linked to changes in the brain’s cannabinoid receptors, which are affected by regular cannabis use[4]. When cannabis use stops, these receptors need time to adjust, leading to withdrawal symptoms such as anxiety, irritability, and sleep disturbances. Effective treatment approaches for cannabis withdrawal often combine behavioral therapies—like cognitive-behavioral therapy (CBT) and contingency management—with medications such as dronabinol (a synthetic form of THC) or gabapentin to help manage anxiety and other symptoms. Support groups and counseling also play a vital role, offering encouragement and practical strategies for coping with withdrawal symptoms and maintaining progress toward recovery.
Is Withdrawal from Marijuana Serious?
In most cases, cannabis withdrawal is not medically dangerous. It doesn’t cause seizures or other physical risks like alcohol or opioid withdrawal can. But it can feel difficult, especially for those with underlying mental health concerns or who’ve used cannabis to cope with stress, sleep issues, or low mood. Individuals with certain medical conditions or those who have used severe cannabis products may be at higher risk for severe withdrawal symptoms. People with a history of high risk substance use or complex medical conditions should seek medical advice before attempting to quit[5].
When it feels serious:
Symptoms significantly impair work or daily life.
Withdrawal triggers other substance use to cope.
Underlying anxiety or depression may worsen.
Withdrawal from Marijuana: When to Seek Help
If you’re finding it hard to manage a break or reduce your use, support is available – especially in the UK, where free and confidential resources are offered. Medically assisted withdrawal and regular monitoring may be recommended for individuals with severe symptoms, complex cases, or co-occurring mental health issues to ensure safety during detoxification. Various treatments, including behavioral therapies and medications, are also available to help manage withdrawal symptoms.
Seek help if:
- Withdrawal symptoms persist longer than 3-4 weeks.
- You experience severe anxiety, depression, thoughts of self-harm, or harm to others.
- You use alcohol or other drugs to cope; the presence of other substance use disorders can complicate withdrawal and may require specialized support.
- You’re unable to cut back despite wanting to.
UK Support Options
NHS & GP Services
Book an appointment with your GP – they can refer you to local addiciton or mental health services.
NHS talking therapies (IAPT) offer CBT and counselling free of charge in most areas.
Most regions have community drug services that support cannabis users and individuals with other use disorders.
Charities and Support Groups
Talk to Frank – 0300 123 6600
We Are With You – Free counselling and recovery advice
Turning Point, Change Grow Live, and others offer local, walk-in or online support
Marijuana Anonymous UK – Peer support for managing use
www.marijuana-anonymous.org.uk
More Information:
Managing Withdrawal and Preventing Relapse
Successfully managing cannabis withdrawal and preventing relapse involves addressing the physical, psychological, and social aspects of cannabis use disorder. Practical strategies include staying hydrated, getting regular exercise, and engaging in activities that promote relaxation and reduce stress. It’s also important to identify and work through any underlying mental health issues or past experiences that may contribute to cannabis use. Support from friends, family, or support groups can make a significant difference, providing encouragement and accountability. By equipping yourself with the right tools and support, you can manage withdrawal symptoms, reduce the risk of relapse, and work toward long-term recovery and improved well-being.
Final Thoughts
Withdrawal from marijuana is a temporary experience that reflects your body adjusting to changes in THC intake. It doesn’t mean you have to stop using cannabis forever. Cannabis abuse and cannabis dependence are clinical conditions that may require additional support. In fact, many people who take tolerance breaks or reduce use return to a more balanced and mindful relationship with cannabis over time.
Whether you’re pausing for a few weeks, making lifestyle changes, or simply getting to know your body better, understanding withdrawal helps you stay in control – on your terms. Problematic use of cannabis or other drug use can be linked to underlying mental disorders or other disorders, and recognizing these connections is important for long-term well-being.
[1] Budney et al., Cannabis withdrawal syndrome, 2020
[2] NHS Addictions Services and DrugWise UK
[3] National Institute on Drug Abuse (NIDA)
[4] Cannabis withdrawal: A reveiew of neurobiological mechanisms and sex differences
[5] Levin et al., Cannabis withdrawal symptoms and impact - Drug and Alcohol Dependence, 2010
