✓ Medically reviewed by Dr. Surabhi Pandit – Consultant Psychiatrist, SSHIMOH, Noida.
Cannabis occupies an odd place in India. It is culturally familiar, widely described as natural and harmless, and simultaneously the substance we see causing a great deal of quiet damage in young people — particularly to motivation, studies and, in a minority, to mental health.
This page is not a moral argument. It sets out what regular use actually does, when it becomes dependence, and what treatment looks like if you or someone in your family wants to stop and is finding it harder than expected.
Is cannabis actually addictive?
Yes, though not in the same way or at the same rate as alcohol, nicotine or opioids. A substantial minority of regular users develop cannabis use disorder, and the risk rises considerably for those who start in adolescence and those who use daily.
The "it is not addictive" belief persists because withdrawal is less physically dramatic than alcohol withdrawal. But withdrawal is real: irritability, anxiety, disturbed sleep and vivid dreams, reduced appetite, restlessness and low mood, typically beginning within a day or two of stopping and lasting one to two weeks.
Those symptoms are the reason a great many people who intend to stop do not. They feel awful, conclude that cannabis was helping after all, and resume.
Today’s cannabis is also considerably more potent than a generation ago, which matters for both dependence and psychiatric risk.
What regular use does
Motivation and daily functioning
The change families notice first is rarely dramatic. It is a gradual narrowing — attendance slipping, deadlines missed, plans abandoned, social life contracting to people who also use. Ambitions that mattered a year ago stop being mentioned.
Users often experience this as contentment rather than loss, which is why outside observation matters so much in this particular condition.
Memory and learning
Cannabis affects short-term memory and the consolidation of new learning while someone is intoxicated, and heavy regular users show difficulties that persist for some time after stopping. For a student, this is the most practically damaging effect, and it compounds quietly over months.
Mental health
This is the part that matters most and is least discussed. Regular, heavy use — especially of high-potency cannabis, and especially starting in adolescence — is associated with a significantly increased risk of psychotic illness in vulnerable individuals.
It is also strongly associated with anxiety and panic, and many long-term users describe worsening rather than improving anxiety over time. Where psychosis develops, treatment involves both the psychiatric condition and the substance use together.
Cannabinoid hyperemesis
A less well-known consequence of long-term heavy use: recurrent cycles of severe vomiting and abdominal pain, often relieved temporarily by hot showers. It is frequently investigated for years as a gastrointestinal problem before the cause is identified. It resolves on stopping.
Signs that use has become dependence
Using more, or for longer, than intended. Wanting to cut down and finding you cannot. Needing more for the same effect. Spending a lot of the day obtaining, using or recovering. Giving up activities you used to value. Continuing despite knowing it is causing problems with studies, work, relationships or health. Withdrawal symptoms when you stop.
For a quick, confidential indication, the four-question CAGE-AID screening test covers drugs as well as alcohol and takes under a minute.
Stopping: what to expect
Unlike alcohol, cannabis withdrawal is not usually medically dangerous, so supervised detox is less often necessary. That does not mean it is easy.
Expect the worst of it in the first week, with sleep the slowest thing to settle — often two to four weeks of poor sleep and unusually vivid dreams. Irritability and low mood are common in the same period. Knowing the timeline in advance genuinely helps people sit through it.
Appetite and mood generally improve after the first fortnight, and most people describe noticeable improvements in memory and motivation within one to three months.
What treatment involves
Because there is no established medication for cannabis dependence itself, treatment is primarily psychological. Cognitive behavioural approaches, motivational work and structured relapse prevention have the best evidence, and our page on alcohol, cannabis and opioid addiction treatment explains how we combine them.
What matters at least as much is treating what sits underneath. A large proportion of regular users are managing anxiety, sleeplessness, trauma or low mood. Remove the cannabis without addressing that, and the underlying problem returns at full strength — which is the most common reason people relapse.
For people who have developed psychotic symptoms, treatment is joint from the start: the psychiatric condition and the substance use are not treated in sequence. This is discussed further in our guide to dual diagnosis.
If you are a parent reading this
The most common mistake is making the conversation entirely about the substance. Asking why your son is smoking ganja tends to produce defensiveness; asking why he has stopped going to class, stopped seeing friends and seems flat tends to produce a conversation.
Searching rooms and issuing ultimatums usually drives use underground rather than stopping it. Consistent, non-judgemental contact works better over time, particularly with adolescents. Our family guide covers the approach in more detail.
If there is any suggestion of paranoia, hearing voices or beliefs that are out of keeping with reality, seek assessment quickly rather than waiting to see whether it passes.
Cannabis alongside other substances
Cannabis is often used alongside alcohol, nicotine or, increasingly, sedatives — and combined use changes both the risks and the treatment plan.
Combined alcohol and cannabis use is particularly common in young men, and the alcohol component may require medically supervised withdrawal even when the cannabis does not.
Where nicotine is mixed in, as it frequently is, stopping cannabis without addressing nicotine leaves a powerful trigger in place. Treating both together produces better results.
Helping someone through the first fortnight
The first two weeks are where most attempts fail, and they are also where a family can make the most difference.
Expect irritability and poor sleep, and do not take the irritability personally — it is withdrawal, it is time-limited, and arguing during it achieves nothing.
Practical help beats lectures: keep the routine predictable, encourage daytime activity and daylight, make food available at regular times even when appetite is poor, and reduce contact with the people and places associated with using for those first weeks.
Mark the two-week point explicitly. Many people feel significantly better by then and had assumed they would not.
What life looks like after stopping
Most people report clearer thinking and better memory within one to three months, improved sleep quality once the initial disruption passes, and — often the biggest surprise — the return of motivation and interest that had faded so gradually they had stopped noticing.
Mood frequently improves too, which is telling, because most long-term users believe cannabis was managing their mood.
The risk period is not the first fortnight but the months afterwards, when the memory of how bad it felt has faded and use looks harmless again. That is what a written relapse-prevention plan is for.
What treatment looks like here
The first appointment establishes how much is being used, for how long, what else is being used alongside it, and — critically — what the cannabis is doing for the person. Sleep, anxiety, boredom and social belonging are the four most common answers.
We screen for psychotic symptoms specifically, because mild paranoia and perceptual changes are frequently not volunteered and change the treatment plan substantially.
For most people the plan is outpatient: structured psychological work, a clear plan for the first fortnight of withdrawal, treatment of any underlying anxiety or low mood, and practical changes to routine and social contact.
Where psychotic symptoms are present, or where several substances are involved, or where repeated attempts have failed, a period of inpatient care may be recommended. Our page on the admission process explains what that involves.
Families are included where the person consents, particularly for adolescents and young adults still living at home, because the home environment has a large effect on whether the change holds.
Frequently Asked Questions
Is cannabis really addictive?
Yes. A significant minority of regular users develop cannabis use disorder, with risk higher among those who start in adolescence and those who use daily. Withdrawal symptoms such as irritability, insomnia and low mood are well documented.
How long does cannabis withdrawal last?
Symptoms usually begin within one to two days of stopping, peak in the first week, and largely settle within two weeks. Sleep disturbance and vivid dreams often last longer, sometimes up to a month.
Can cannabis cause schizophrenia?
Regular heavy use, particularly of high-potency cannabis beginning in adolescence, is associated with a substantially increased risk of psychotic illness in vulnerable people. It is a risk factor rather than a simple cause.
Is medical cannabis different?
Medically supervised cannabinoid products for specific conditions are a different matter from recreational use of high-potency cannabis, in dose, composition and monitoring. This page concerns the latter.
Do I need to be admitted to stop using cannabis?
Usually not. Cannabis withdrawal is uncomfortable rather than medically dangerous, so most people are treated as outpatients. Inpatient care may be advised where there are psychotic symptoms, other substances involved, or repeated failed attempts.
My son says it is natural and harmless. How do I respond?
Arguing the point rarely works. It is often more effective to talk about what you have observed — attendance, sleep, motivation, mood — than about the substance itself.
References and further reading
- National Institute on Drug Abuse
- NIMHANS, Bengaluru — Centre for Addiction Medicine
- Tele-MANAS, Ministry of Health and Family Welfare
Stopping is easier with help than most people expect
Most people who come to us about cannabis have already tried to stop alone more than once, and concluded from the discomfort that they cannot. With structured support and something better than willpower to manage the first fortnight, the picture usually looks very different.
Call +91 72669 93399 or book a confidential consultation.