How to quit smoking weed: A practical guide

Quitting weed is harder than most people expect, and the reason usually has less to do with willpower than with what happens to your sleep, mood, and appetite in the first week. This article covers how to prepare to quit weed, how to choose between stopping cold turkey and cutting down gradually, and how to manage withdrawal once you’ve stopped. The article also sets out when quitting on your own isn’t enough, and where to find support in South Africa.

If you’re still deciding whether your use has become a problem, our article on why you should quit weed covers the risks of regular use and the signs of cannabis use disorder.

Why quitting weed is harder than people expect

Withdrawal is one of the biggest obstacles for people who try to quit weed. Cannabis withdrawal isn’t physically dangerous for most users, but it disrupts sleep, mood, and appetite enough to make ordinary days hard to get through.

A small 2012 study of 49 people quitting cannabis measured how much each withdrawal symptom interfered with daily life. The symptoms that caused the most disruption were:

• Trouble getting to sleep
• Angry outbursts
• Cravings, including imagining being stoned
• Loss of appetite
• Feeling easily irritated
• Nightmares or strange dreams

The more those symptoms disrupted someone’s day-to-day functioning, the more cannabis they were using a month later. Physical tension stood out as a particularly strong predictor of relapse.

If you know which symptoms are likely to hit hardest, you can plan for each of them before you stop.

How to prepare to quit weed

Preparation really pays off in the first week, because decisions are far easier to make before withdrawal starts than in the middle of it. Three steps cover most of what you’ll need.

Track how much you use, and when

For one week before you quit, keep a record on your phone or in a notebook each time you use weed. Note down:

• The time of day
• Where you were and who you were with
• How much you used
• How you were feeling beforehand

By the end of the week, patterns usually emerge. Many people find that most of their use clusters around a few situations, such as after work, before bed, or when they’re bored or stressed. Those situations are the ones to plan for.

The record also gives you a baseline, which helps if you decide to cut down gradually rather than stop all at once.

Write down why you’re quitting

Write a short list of your reasons for stopping, in your own words, and keep it somewhere you’ll see it every day. Specific reasons, such as your relationship, your job, or your sleep, give you something concrete to come back to during a craving. A general intention like “being healthier” is easier to argue yourself out of at 21:00 on a difficult evening.

If you want a clearer sense of what regular use may be costing you, our companion article sets out the effects of cannabis on your mental health, relationships, and finances.

Set a quit date and clear out your supply

Pick a date within the next two weeks, ideally at the start of a period with fewer social commitments and some flexibility in your schedule. Withdrawal usually starts within a day or two of stopping and peaks during the first week. Avoid choosing a date just before a major work deadline or exam.

The day before you stop, get rid of any weed and smoking equipment you have at home, including anything in your car or at work. Keeping a small amount “just in case” makes it much easier to use on the first difficult night.

With a record of your patterns, a written list of reasons, and a clear date, you’ll have made most of the decisions that are hardest to make once withdrawal begins.

Should you quit weed cold turkey or cut down gradually?

Both approaches can work, and the right one depends on how much you use and how previous attempts to stop have gone.

Stopping all at once has the advantage of simplicity. There’s no daily negotiation about how much is allowed, and the withdrawal period starts straight away rather than being stretched out.

Cutting down gradually is the alternative, particularly if you use heavily every day. A 2022 clinical review of cannabis withdrawal management notes that cutting intake slowly over several weeks, or switching to lower-THC products, may lower both the likelihood and the severity of symptoms. The same review acknowledges that neither strategy has been well studied. Tapering is a sensible option to try, though the evidence behind it is limited.

If you taper, set your limits in advance and reduce them on a fixed schedule over several weeks. Decide when you’ll use as well as how much. Drop the sessions you rely on least first, and leave the hardest ones, often the evening or bedtime session, until last.

When to speak to a doctor before stopping

One group should get medical advice before stopping abruptly. A 2025 review of psychosis linked to cannabis withdrawal identified more than 100 cases in which psychotic symptoms began shortly after someone stopped using. Some were first episodes, and others were relapses in people already diagnosed with a psychotic illness. Almost all of those cases involved daily users who had stopped suddenly.

The review can’t say how often this happens overall. If you’ve had a psychotic episode before, speak to a doctor before you stop, and plan to quit with clinical support rather than on your own.

For everyone else, the choice comes down to preference and past experience. If you’ve tried stopping cold turkey before and gone back within days, a gradual reduction may suit you better this time.

How to manage cannabis withdrawal symptoms

Dagga withdrawal symptoms are uncomfortable, but most people can manage them at home. There are no medications approved specifically for treating cannabis withdrawal, which means the most useful tools are practical ones. The 2022 clinical review lists practical measures, from sleep hygiene to exercise and nutrition, among the standard first-line approaches.

Our article on why you should quit weed includes a week-by-week cannabis withdrawal timeline, from the first few days to the three-month mark. The strategies below cover what to do about each symptom along the way.

Sleep

Sleep is often the hardest part of weed withdrawal, especially if you’ve been using at night to fall asleep. Expect a few nights of difficulty dropping off, and vivid or unsettling dreams are common in the first few weeks. A few habits help:

• Keep the same bedtime and wake-up time every day, including weekends
• Avoid caffeine after midday, and cut back on alcohol, which disrupts sleep further
• Put your phone away an hour before bed
• Get out of bed if you haven’t fallen asleep after 20 minutes, and go back when you feel drowsy

The 2022 review notes that sleep hygiene and cognitive behavioural therapy for insomnia may help, though neither has been well studied in cannabis withdrawal specifically. If your sleep is still badly disrupted after two or three weeks, speak to a doctor rather than self-medicating with alcohol or sleeping pills.

Exercise

Regular exercise helps with several withdrawal symptoms at once. A 2023 meta-analysis of 22 randomised trials in people with substance use disorders found that exercise reduced cravings, with moderate-intensity activity having the strongest effect on depression and anxiety. The trials covered a range of substances rather than cannabis alone. Even so, the finding is consistent with clinical guidance on cannabis withdrawal, which lists physical exercise among the standard first-line strategies.

A brisk half-hour walk, a run, or a gym session is enough. Scheduling it for the times you’d usually use weed fills the gap and eases restlessness at the same point in the day.

Cravings

Weed cravings build to a peak and then fade, usually faster than it feels in the moment. When a craving hits:

• Delay: Commit to waiting 15 minutes before you decide anything
• Distract: Do something that occupies your hands or attention, such as walking, showering, or phoning someone
• Remind yourself: Read the list of reasons you wrote before your quit date

Often, the urge will have eased by the time the 15 minutes are up. Each craving you ride out without using also weakens the link between that situation and weed.

Appetite, food, and hydration

Loss of appetite is common in the first week or two. Eat small, regular meals even if you don’t feel hungry, and keep easy options at home for the days when cooking feels like too much. Drink plenty of water, and go easy on caffeine and sugar, which can make irritability and poor sleep worse.

Irritability and low mood

Irritability and low mood are two of the most common withdrawal symptoms, and they can strain relationships at home. Warning the people you live with in advance helps, as does taking short breaks when you feel tension building. Given the link between physical tension and relapse, stretching, a hot shower, or a walk can take the edge off at the moment it counts.

If low mood deepens or lasts beyond the first few weeks, or you have thoughts of harming yourself, speak to a doctor or call the SADAG helpline on 0800 12 13 14.

Most of these symptoms ease within one to two weeks. Having a plan for each one before it arrives makes that period far easier to get through.

How to change your routine after quitting weed

Weed usually occupies specific times and situations, and those gaps don’t disappear when you stop. Planning what fills them makes the first month considerably easier.

Start with the record you kept before quitting and identify your highest-risk situations. For each one, decide in advance what you’ll do instead. If you always smoked after work, plan an alternative for the first hour after you get home, such as exercise, cooking, or a call with a friend.

The people you used with can be the hardest part. You don’t have to cut them off, but you may need to see them in different settings for a while, or tell them plainly that you’ve stopped and would rather they didn’t offer.

Telling one or two people you trust that you’re quitting gives you someone to call on a hard evening, and adds some accountability. Many people also used weed to unwind or pass the time. Taking up something that meets the same need, whether that’s a physical hobby, a creative project, or a regular social commitment, helps fill the evenings that used to revolve around smoking.

In the first month, the aim is to remove weed from the situations where you’d normally reach for it.

What to do if you slip up after quitting weed

Going back to weed after a period of abstinence is common, and one slip doesn’t have to undo the progress you’ve made. A lapse is a one-off use, while a relapse means going back to your old pattern. A lapse tends to turn into a relapse when someone decides that, having used once, the whole attempt has failed and they may as well carry on.

If you do use:

• Get rid of whatever is left rather than finishing it
• Write down what led to it, including the situation, the time, and how you were feeling
• Adjust your plan for that situation before it comes round again
• Tell someone you trust

If you’ve lapsed several times, or you keep going back within the first week, quitting on your own may not be enough, and extra support is likely to help.

When to get help to quit weed

Most people can manage cannabis withdrawal without being admitted anywhere, but some situations call for clinical support from the start. The 2022 clinical review referenced above states that inpatient admission is rarely required for uncomplicated cannabis withdrawal, and recommends considering it for people who:

• Use other substances alongside cannabis
• Have a co-occurring mental health condition, such as depression, anxiety, or psychosis
• Haven’t been able to stop with outpatient support

For most people who need help, outpatient treatment is the right starting point. A 2025 systematic review of psychological treatments for cannabis use disorder found that combining two therapies had the strongest evidence of the approaches studied, although the overall quality of the research was low. Motivational enhancement therapy helps you build and hold on to your own reasons for change. Cognitive behavioural therapy teaches practical ways to handle triggers and cravings.

Houghton House offers an intensive outpatient programme for people who want support without stepping away from work or family commitments. For people with more complex needs, including dual diagnosis and polysubstance use, our inpatient drug rehab programme offers a 30-day stay in a fully licensed psychiatric hospital, with specialist care for co-occurring mental health conditions on site.

Substance use disorders, including cannabis use disorder, are prescribed minimum benefits in South Africa, which means all registered medical aid schemes must cover treatment. Our admissions team can check your medical aid cover at no cost, or talk through whether you need treatment at all. Call 011 787 9142, 24 hours a day.

Support for quitting weed in South Africa

Whether or not you enter treatment, several free sources of support are available in South Africa:

• SADAG helpline: Call 0800 12 13 14, 24 hours a day, for confidential support with substance use and mental health
• Narcotics Anonymous: Free peer-support meetings for people recovering from any drug, including cannabis, held in cities across South Africa. NA follows the 12-step programme, which our guide to the 12 steps explains in plain terms.
• Low-cost treatment: If private rehab isn’t an option, our list of free and subsidised rehabilitation centres covers state-funded facilities in all nine provinces, along with NPO-run options

Combining these, for example by attending meetings while following the steps in this article, gives you support both at home and outside it during the first few months.

Frequently asked questions about quitting weed

Is it possible to quit weed on your own?

Yes. Many people stop using cannabis without formal treatment, particularly if their use is moderate and they don’t have a co-occurring mental health condition. Preparing in advance, planning for withdrawal symptoms, and telling someone you trust all make the process easier. If you’ve tried several times and keep going back, it may be time to look at outpatient support.

Can you quit weed cold turkey?

Yes. Cannabis withdrawal isn’t physically dangerous for most people, and stopping all at once is a common and reasonable approach. Heavy daily users may find that a gradual reduction over several weeks eases withdrawal, though the evidence for tapering is limited. If you’ve had a psychotic episode before, speak to a doctor before stopping abruptly.

What helps with weed withdrawal?

The most useful strategies are practical: a regular sleep routine, daily exercise, and eating and drinking well even when your appetite is low. Delaying and distracting yourself when cravings hit helps you ride them out. There are no medications approved specifically for cannabis withdrawal, although a doctor may treat individual symptoms such as severe insomnia.

How long does it take to quit weed?

Withdrawal symptoms usually start within a day or two of stopping, peak during the first week, and ease over one to two weeks, although sleep problems can last longer. Breaking the habit takes longer, because the routines tied to using can trigger cravings for several months. Our cannabis withdrawal timeline covers what to expect week by week.

Why is it so hard to quit weed?

Withdrawal disrupts sleep, mood, and appetite at the same time as you’re trying to change a daily habit. A 2012 study of people quitting cannabis found that the more withdrawal interfered with daily life, the more participants were using a month later. Weed is also often tied to specific routines, such as winding down after work or falling asleep, which means the cues to use keep coming up long after the physical symptoms fade.