Withdrawal from Marijuana

You decided to stop smoking weed. It's day two. You snapped at your roommate over nothing. You were up until 3 a.m. The dinner you ordered is still in the bag. When you finally slept, the dreams were vivid enough to leave you unsure what was real.

If you've recently stopped or cut back after regular use, that combination is classic weed withdrawal. Symptoms usually start 24 to 48 hours after your last use, peak somewhere between days 2 and 6, and ease within one to two weeks for many people. Marijuana withdrawal is uncomfortable, but isn't considered life-threatening on its own (Cleveland Clinic).

Below we’ll dig into the symptoms, the timeline, what helps, and when it's worth talking to a doctor.

What is weed withdrawal?

Weed withdrawal, which clinicians call cannabis withdrawal syndrome, is the set of mental, emotional, and physical symptoms that can show up when you cut back or stop after regular use. Your brain adjusts to regular THC, then needs time to readjust once it's gone.

It's very common. A review of 47 studies covering more than 23,000 people found that about 47% of people who use cannabis regularly or dependently get withdrawal when they stop. The rate was about 17% in general-population samples and higher in clinical settings, and withdrawal was more likely in daily users and people who also use tobacco or other drugs. 

Withdrawal is also one of the signs of cannabis use disorder. If you're wondering where your own use falls, read Is weed addictive?

Weed withdrawal symptoms

The most common ones are emotional and sleep-related:

• Irritability, anger, or a short fuse

• Anxiety or nervousness

• Restlessness

• Low mood

• Trouble falling or staying asleep

• Strange or vivid dreams

• A smaller appetite, sometimes with weight loss

Less common physical symptoms:

• Headaches

• Sweating, including night sweats

• Chills

• Stomach pain or nausea

• Shakiness

These lists come from clinical reviews of cannabis withdrawal (Connor et al., Addiction, 2022; Cleveland Clinic). 

Weed withdrawal timeline

Everyone's timeline is a little different. The general pattern from clinical research looks like this:

Days 1 to 2

Symptoms usually begin 24 to 48 hours after your last use. Irritability, restlessness, cravings, and trouble sleeping often come first.

Days 2 to 6

Most symptoms peak. Sleep problems, vivid dreams, anxiety, low appetite, and mood swings tend to be strongest. Cleveland Clinic puts the peak at around day three.

Week 2

For many people, the hardest symptoms ease within one to two weeks. Cravings and sleep may still come and go.

Weeks 3 and beyond

Some symptoms can last three weeks or more in heavy users. Sleep trouble and strange dreams are the likeliest to linger.

For a day-by-day look at the first month, including what tends to improve and when, see 30 days without weed.

Why yours might hit harder or softer than a friend's

How long withdrawal lasts and how hard it hits depend on how much you used, how often, and for how long. Cleveland Clinic lists daily use, higher-potency products like dabbing, using tobacco too, and other substance use disorders as factors that make withdrawal more likely. People with anxiety, mood disorders, or PTSD are more likely to have severe symptoms.

Appetite and weight after quitting weed

A smaller appetite is one of the most common withdrawal symptoms (Cleveland Clinic). If you often got high before meals, your hunger cues may have come to depend on it, and they can take a little while to restart on their own.

Some people lose some weight in the first weeks because they're eating less. Appetite usually comes back as the other withdrawal symptoms ease.

What helps:

• Eat at regular times, even if you aren't hungry yet.

• Go for smaller meals and snacks more often.

• Keep easy, appealing food around: smoothies, yogurt, toast, soup.

• Drink water throughout the day, especially if you're sweating more.

• Move. A walk or a workout can help bring hunger back.

If you can barely eat for several days, keep losing weight, have ongoing nausea or vomiting, or eating feels hard in a way that worries you, check in with a doctor.

Sleep and dreams

Sleep trouble is one of the hallmark symptoms of cannabis withdrawal. You might struggle to fall asleep, wake up a lot, or sleep for hours and still feel unrested. Sleep tends to be one of the last things you’ll recover after quitting. One study reported trouble sleeping and strange dreams for up to seven weeks in an outpatient group (Vandrey et al.). If your sleep is still off after everything else has improved, it’s fairly normal.

Vivid dreams are especially common. Studies of people stopping cannabis consistently find more REM sleep, the stage where most dreaming happens, along with more vivid dreaming. The usual explanation is a rebound after THC dampened REM during use, though the research on that dampening is mixed. The dreams can be strange, emotional, or about using. They usually settle over a few weeks, though some people notice them for longer.

Our guide to sleep after quitting weed covers routines that help and what to do when poor sleep makes you want to use again.

Anxiety, irritability, and mood

Feeling on edge, short-tempered, or flat is very common in the first one to two weeks. If you used weed to take the edge off stress, those feelings can sound louder for a while after you stop.

What helps: regular exercise, time outside, slow breathing, less caffeine, and telling the people around you what's going on. "I'm quitting weed, I might be short-tempered this week" is a simple and soft reminder to others. 

In a four-week study of young people who used weekly, anxiety and depression symptoms didn't get worse than they did for people who kept using. The first check-in came at week one, so the study may have missed the earliest days (Cooke et al., 2021). If you had anxiety or depression before you started using, or symptoms feel severe, talk with a professional. Our page on marijuana and anxiety goes deeper.

Other symptoms: brain fog, sweating, and headaches

Brain fog. Some people feel foggy or slow in the first days. It isn't one of the formal withdrawal symptoms, and short sleep can cause that kind of fog on its own. In a study of 16 to 25 year olds who used cannabis regularly, those who stopped for a month improved at learning and recalling new information, mostly in the first week (Harvard Gazette).

Sweating and night sweats. These are on the list of physical symptoms. Keep your room cool, use light bedding, and drink water.

Headaches. Stay hydrated, keep regular meals and sleep, and watch your caffeine. Severe, sudden, or persistent headaches need medical attention.

Withdrawal from edibles, vapes, and delta-8

Withdrawal comes from stopping THC, so it can happen whatever form it came in.

• Edibles. Daily edible use can bring withdrawal like daily smoking. Edibles are often taken at night, so sleep symptoms may stand out if you’re quitting edibles.

• Vapes, carts, and dabs. Concentrates can contain far more THC than flower or most edibles. People who use higher-potency products or dab are more likely to have withdrawal.

• Delta-8. Delta-8 is a form of THC that gets you high. The FDA hasn't evaluated or approved delta-8 products for safe use, and research on it’s use and withdrawal from quitting is still limited. In a 2022 study in mice, repeated delta-8 exposure produced dependence and withdrawal signs similar to delta-9 THC (PubMed). If you've used it regularly, it's reasonable to expect symptoms like the ones above, though the human evidence is thin.

How to get through weed withdrawal

No medication is approved specifically for cannabis withdrawal. Supportive care and education are the first-line approach. Day to day, that looks like:

• Know the timeline. Symptoms usually peak in the first week and ease after that.

• Protect your sleep. Keep a fixed wake time and a wind-down routine.

• Eat on a schedule. Even small amounts count.

• Move every day. A walk counts.

• Cut caffeine after noon.

• Plan for cravings. Delay 15 minutes, change your setting, and reach out to someone. Our guide on how to quit weed has the full plan.

• Track how you feel. In I Am Sober you can log your mood, sleep, and cravings and write a short review each night. The trend shows up even when today feels bad.

• Get support. Tell someone you trust, join the community, or talk with a professional.

When to get medical or professional help

Withdrawal from cannabis alone rarely needs medical care. You should talk with a doctor or mental health professional if:

• You also use alcohol, benzodiazepines, or opioids. Withdrawal from those substances can be dangerous.

• You have depression, anxiety, PTSD, bipolar disorder, or another mental health condition.

• Your symptoms are severe or getting in the way of work, school, or relationships.

• You have ongoing vomiting, can't keep food or fluids down, or keep losing weight.

• Sleep or mood problems last longer than a few weeks.

• You keep going back to weed to stop the symptoms.

A clinician can talk through options for specific symptoms like sleep or anxiety. Cognitive behavioral therapy, motivational enhancement therapy, and contingency management can be effective for cannabis use disorder. 

In the U.S., the SAMHSA National Helpline (1-800-662-4357) is free and confidential. If you're having thoughts of harming yourself, call or text 988 in the U.S. or contact your local emergency number right away.

Want the full set of guides by stage? The marijuana support hub lists them all.

Frequently asked questions

How long does weed withdrawal last? 

Symptoms usually start within 24 to 48 hours, peak between days 2 and 6, and ease within one to two weeks for many people. Some symptoms, especially sleep problems, can last three weeks or longer in heavy users.

What is the worst day of weed withdrawal? 

For many people it falls between days 2 and 6, often around day three. It varies with how much and how often you used.

Is weed withdrawal dangerous? 

Cannabis withdrawal isn't usually considered dangerous on its own, but it can be very uncomfortable. It calls for more care if you also use other substances or have a mental health condition, so talk to a doctor in those cases.

Does weed make you lose appetite when you're sober? 

Quitting weed often does. A smaller appetite is one of the most common withdrawal symptoms, especially if you were used to eating after using. For most people appetite comes back as other symptoms ease.

Will I lose weight after quitting weed? 

Some people do in the first weeks because they're eating less. It usually levels out as appetite returns. Ongoing weight loss or trouble eating is worth a doctor's visit.

Why do I have such vivid dreams after quitting weed? 

People stopping cannabis consistently show more REM sleep, the stage where most dreaming happens, which is often explained as a rebound. The dreams usually settle over a few weeks.

Will I have withdrawal from delta-8?

Probably. Delta-8 is a form of THC, and mouse research shows dependence and withdrawal signs similar to delta-9, but human studies are limited.

Does everyone get withdrawal when they quit weed?

No. About 47% of people who use regularly or dependently experience it, and about 17% in general-population samples. It's more likely with daily use, high-potency products, or tobacco use.

Sources:

• Bahji A, et al. Prevalence of Cannabis Withdrawal Symptoms Among People With Regular or Dependent Use of Cannabinoids. JAMA Network Open, 2020. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2764234

• Connor JP, et al. Clinical management of cannabis withdrawal. Addiction, 2022. https://onlinelibrary.wiley.com/doi/10.1111/add.15743

• Cleveland Clinic, Marijuana (Weed) Withdrawal. https://my.clevelandclinic.org/health/diseases/marijuana-weed-withdrawal

• Vandrey R, et al. Sleep disturbance and the effects of extended-release zolpidem during cannabis withdrawal. https://www.med.upenn.edu/cbti/assets/user-content/documents/nihms273324.pdf

• Cannabis and sleep architecture: A systematic review and meta-analysis. Sleep Medicine Reviews, 2025. https://www.sciencedirect.com/science/article/pii/S1087079225001170

• Cooke ME, et al. Assessing Changes in Symptoms of Depression and Anxiety During Four Weeks of Cannabis Abstinence Among Adolescents. Front Psychiatry, 2021. https://pubmed.ncbi.nlm.nih.gov/34276449/

• Schuster RM, et al. One Month of Cannabis Abstinence in Adolescents and Young Adults Is Associated With Improved Memory. J Clin Psychiatry, 2018. Summary: https://news.harvard.edu/gazette/story/2018/10/one-month-of-abstinence-from-cannabis-improves-memory-in-adolescents-young-adults/

• University of Vermont, T-Break Guide Week 1. https://www.uvm.edu/health/t-break-week-1

• FDA, 5 Things to Know about Delta-8 Tetrahydrocannabinol. https://www.fda.gov/consumers/consumer-updates/5-things-know-about-delta-8-tetrahydrocannabinol-delta-8-thc

• Cleveland Clinic, What Is Delta-8 THC? https://health.clevelandclinic.org/what-is-delta-8

• Assessment of dependence potential and abuse liability of delta-8-tetrahydrocannabinol in mice, 2022. https://pubmed.ncbi.nlm.nih.gov/36179506

• NIDA, Cannabis (Marijuana). https://nida.nih.gov/research-topics/cannabis-marijuana

• SAMHSA National Helpline. https://www.samhsa.gov/find-help/helplines/national-helpline