How do you know if you’re addicted to cocaine?

No medicine is approved by the US FDA to treat it, so treatment is built on therapy.

What is cocaine and what does it look like?

Cocaine is a stimulant made from coca leaves. A doctor can still give it as a local anaesthetic for some eye, ear and throat surgery, NIDA notes, but the cocaine drug sold on the street comes in two forms:

• Powder, fine and white, snorted as a line of coke, rubbed into the gums or injected.
• Crack, small off-white or cream rocks that are heated and smoked.

South African lab leaflets list the street names: coke, snow, flake and blow for the powder, crack and rock for the smoked form (Ampath). So “the rock drug” in Cape Town means crack cocaine. A bag of coke can hold anything, at any strength.

Crack cocaine vs powder cocaine: what is the difference?

Crack and powder are the same drug; what differs is speed. Snorted, the effects of using coke start in 3 to 5 minutes and wear off within 45 to 90 minutes, according to the MSD Manual; smoked as crack, cocaine peaks within 3 to 5 minutes and is gone in 15 to 20. The shorter the high, the sooner the next pipe, so a crack habit tends to build faster.

How does cocaine affect the brain?

The drug effects of cocaine come from dopamine, the chemical behind reward and drive. Cocaine stops the brain clearing it away, so the signal is amplified, NIDA explains. With regular use the brain adjusts, ordinary pleasures go flat, and the person uses to feel normal rather than high, which is what makes cocaine addictive.

Because the high is short, cocaine invites binges, one line after another until the bag is empty. Then comes the crash, with exhaustion, low mood and craving, and each crash pulls towards the next session. If cocaine is how you get through the week or the silence at home, that reason is still waiting on Monday.

What are the short-term effects of cocaine?

The short-term effects of cocaine start within minutes and speed everything up. Common effects of coke include:

• A rush of euphoria, energy and confidence
• Talkativeness, little appetite and no need for sleep
• A racing heart, higher blood pressure and a raised temperature
• Wide pupils, a runny nose, a tight jaw

Cocaine side effects at higher doses include anxiety, paranoia and sometimes aggression. In rare instances, NIDA warns, “sudden death can occur on the first use of cocaine or unexpectedly thereafter”.

What are the long-term effects of cocaine?

The long-term effects of cocaine that matter most are damage to the heart and blood vessels, and anxiety or depression that outlasts the high. Coke drug effects on the rest of the body depend on how it is taken: snorting wears out the lining of the nose, smoking crack damages the lungs, and shared needles bring HIV and hepatitis C. How other drugs compare is covered in types of drugs and their long-term effects.

Cocaine and your heart

In a study that interviewed 3,946 people after a heart attack, the risk of the attack starting was 23.7 times above baseline in the 60 minutes after cocaine use.

The brain is at risk too: a 2026 meta-analysis in the International Journal of Stroke found that cocaine use roughly doubled the odds of stroke (odds ratio 1.96). Drinking alongside it adds to the strain: the liver turns cocaine and alcohol into cocaethylene, thought to be more toxic to the heart than cocaine alone. More in what happens when you mix cocaine and alcohol.

Mental health effects of cocaine

Some people who use cocaine regularly report anxiety, panic and paranoia, and heavy use can tip into psychosis with hallucinations, according to NIDA.

For many people the anxiety, the depression or something older came first, and a line gave a shy or worn-out person the confidence they could not find alone. NIDA advises treating mental health conditions and addiction at the same time.

“The client wants to stop but is unable to stop. Therefore, we’ve got to build up the client’s self-esteem, self-confidence, give them tools…”

What are the signs and symptoms of cocaine addiction?

The main signs of cocaine addiction are loss of control and the crash. You use more than you meant to, you have tried to cut down and could not, and you carry on although it costs you. NIDA’s term for this is cocaine use disorder. For drugs in general, see signs of drug dependency.

Signs of cocaine addiction in yourself

• One line turns into the whole bag, most times.
• You need more than you used to for the same effect.
• You have promised yourself “not this weekend” and used anyway.
• Cocaine makes you drink more, and you use it so you can keep drinking.
• Monday and Tuesday are a write-off: flat, anxious, short-tempered.
• You have started using alone, or on weekdays.

If several of these fit, message our team with what you use and how often, and we will talk it through with you.

Signs of cocaine use in someone you love

The pattern shows long before there is proof:

• Nights that end at dawn, and a phone that goes into the bathroom every time.
• Frequent trips to the toilet at a party or a braai, and a sniff that never clears.
• Bursts of energy and talk, then a whole Sunday in bed.
• A short temper with you and the children in the days after.
• Money that does not add up, and cash withdrawals at odd hours.

You do not need proof, or their agreement, to talk to our team about what you are seeing.

Is it addiction if you can stop when you want?

A week off does not settle it either way. A clinician looks at the wider pattern over months: how often you use more than you planned, what it costs you, and how the days after feel.

If a break has been hard, tell us what made it hard, what pulled you back, and what else you use alongside the cocaine. That is where the first conversation starts.

If you also drink every day, or take benzos, mandrax, GHB, opioids or sleeping tablets, do not stop those suddenly on your own. Write to us first, so that stopping them can be planned with medical help.

Cocaine withdrawal: what to expect

Between 53% and 97% of people who stop after prolonged stimulant use go through withdrawal, according to a review by Li and Shoptaw in Addiction (2023). The first week is the acute stage, weeks 2 to 4 are early protracted withdrawal, and cravings can return after that.

Expect low mood and fatigue, vivid unpleasant dreams, sleeping too little or too much, and a bigger appetite. These can last several weeks to months, often with “a strong urge to resume use”, the MSD Manual notes.

The hardest part is mood: the depression that may result “requires close supervision and treatment”, the MSD Manual says. No medicine is approved by the US FDA for stimulant withdrawal, so the people and routine around you carry those first weeks. If low mood ever turns into thoughts of not wanting to be here, do not wait for the crash to pass: that needs professional help now.

If you might act on those thoughts or cannot stay safe, get emergency help immediately rather than waiting for a reply from us; the Suicide Crisis Helpline, 0800 567 567, answers day or night. When you are safe, talk to us about the cocaine and the depression that comes after it. We treat both together, and a partner or parent can make that first call.

Cocaine use in South Africa: what does the data show?

SACENDU, the South African Medical Research Council’s treatment monitor, counted crack or cocaine as the main drug for 3% of people entering specialist treatment nationally in the first half of 2025, and for 3% of the 1,654 admitted in the Western Cape in the second half. As for who uses cocaine, it is mostly adults: the average age was 33 nationally and 31 in the Western Cape.

Use has grown: in five national household surveys of South Africans aged 15 and over, the share who had used cocaine in the past three months rose from 0.02% in 2002 to 1.8% in 2017 (International Journal of Drug Policy, 2024).

What is the treatment for cocaine addiction?

The main treatment for cocaine addiction is therapy, because “there are no medications approved by the U.S. Food and Drug Administration to treat cocaine use disorder”, NIDA says. In a 2021 meta-analysis of 157 studies in JAMA Network Open, only contingency management, which gives vouchers or prizes for staying off cocaine, was significantly associated with cocaine-free test results (odds ratio 2.13).

The WHO and UNODC International Standards (2020) name a wider set of methods that have proved effective for drug use disorders, among them cognitive behavioural therapy, dialectical behaviour therapy, family therapy and mutual-help groups, including 12-step groups. Whatever the method, treatment for cocaine usually has to cover three needs: the anxiety or low mood underneath, support beyond the first weeks of withdrawal, and a plan for the weekends back home.

When to get help, and what treatment looks like at Renewed Life Center

It is time for treatment when you keep going back after trying to stop, when the crash takes days out of your week, or when cocaine comes with daily drinking or pills. Renewed Life Center, a residential centre in Lakeside, Cape Town, builds its programme around those three needs.

What sits under the cocaine

One team treats the cocaine together with the anxiety, low mood, trauma or burnout underneath it, on one plan. Ruby Weber, the psychologist who heads psychology at the centre, has more than 20 years in the addictions field and leads the psychological side of our dual diagnosis work. Cognitive behavioural therapy works on cravings and the Friday-night triggers, DBT on getting through strong emotions without a line, and schema therapy and EMDR go after older patterns and trauma.

How the first and second months work

A doctor examines you after you arrive. If drink or sedatives are part of the picture and you need a detox, our medical team runs it, from three days to two weeks depending on what your body needs.

Back home, without the team

Every discharge includes a written relapse-prevention plan built for your home. If home is too risky straight away, sober living on the same property lets you work or study by day and come back in the evening, with regular drug and alcohol tests and weekly sessions with a counsellor. Our day programme, on weekdays with daily drug tests while you live at home, can follow if your counsellor recommends it.

If it is someone you love

You can talk to our team before the person has agreed to come. Once they are with us, their counsellor keeps in touch with you if they consent. You can join the family group by video every week and have sessions of your own with our team.

What happens when you message us

The first conversation is free and confidential, 20 to 40 minutes by WhatsApp, video or phone, usually with John Roberts, our Operations Manager, who has 39 years in recovery himself. A clinical assessment of 45 to 90 minutes follows, and admission can be immediate and typically happens within three days of first contact. The fee depends on the programme and how long you stay, and we give it on the first call and in writing the same day.

Want to talk through your situation, or someone else’s? Talk to our team on WhatsApp.Want to talk through your situation, or someone else’s? Call +27 79 880 0045, free and confidential.

Frequently asked questions about cocaine

Can you overdose on cocaine?

Yes, and it can be fatal: “cocaine-related deaths are often a result of cardiac arrest or seizures”, NIDA says. Signs of an overdose include chest pain, trouble breathing, a seizure, severe agitation or a very high temperature. An overdose is a medical emergency: get emergency help now rather than waiting for a reply from us.

How long does cocaine stay in your system?

In urine, usually 2 to 3 days, and up to 9 days after heavy use, according to the Ampath leaflet. Blood, saliva and hair tests have their own windows, set out in how long drugs stay in your system.

Can you get addicted to cocaine if you only use at weekends?

Yes. Addiction is about loss of control and harm, not the day of the week. If weekends keep getting longer, or you cannot stop once you start, the pattern is already there.

Do you need detox to stop cocaine?

Cocaine withdrawal is mostly about mood and cravings, which is why the first weeks need close support. Whether you need a medical detox is decided by our medical team after the assessment. If drink, benzos or sleeping tablets are part of it, do not stop those suddenly on your own.

How can I help someone addicted to cocaine?

Pick a moment when they are neither high nor coming down. Talk once, calmly, about what you have seen and how it affects you, and do not cover for them or pay off their debts. How to talk to a loved one about rehab covers what to do if they say no.