Cocaine has never gone away, and the risks attached to it have changed. Its most underappreciated danger is cardiac: cocaine causes heart attacks in people in their twenties and thirties with otherwise clean arteries. Meanwhile the supply is increasingly contaminated with fentanyl, which is lethal for users who have no opioid tolerance at all.
Quick reference
| Drug class | Central nervous system stimulant. Blocks reuptake of dopamine, norepinephrine and serotonin |
|---|---|
| DEA schedule | Schedule II |
| Forms | Powder cocaine hydrochloride (snorted or injected); crack cocaine freebase (smoked) |
| Duration of effect | 15 to 30 minutes snorted, 5 to 10 minutes smoked. The brevity drives binge redosing |
| Cardiac risk | Heart attack risk is elevated many times over in the hour after use, regardless of dose or use history |
| Dangerous combination | Cocaine plus alcohol forms cocaethylene, which is longer lasting and more cardiotoxic than either alone |
| Common adulterant | Levamisole, a veterinary dewormer that can suppress white blood cells |
| FDA approved medication | None. Contingency management has the strongest evidence |
Why cocaine produces binges
Cocaine blocks the reuptake of dopamine, norepinephrine and serotonin so they accumulate in the synapse. The dopamine surge produces euphoria, confidence, energy and appetite suppression, while the norepinephrine effect constricts blood vessels, raises heart rate and blood pressure and dilates the pupils.
The effect is brief and is followed by a sharp comedown, and that brevity is structurally what produces binges: redosing every twenty minutes for hours, with escalating amounts delivering less pleasure and more agitation and paranoia. By the end of a run most people are not enjoying it at all.
Crack and powder are the same drug by a different route. Smoking reaches the brain in seconds, which makes it more intensely reinforcing and harder to control, and adds lung damage. The historic sentencing disparity between the two forms was a policy choice, not a pharmacological distinction.
The cardiac risk is not theoretical
Cocaine constricts coronary arteries while simultaneously increasing the heart oxygen demand, promotes clot formation, and can trigger arrhythmias. Those mechanisms together cause heart attacks in young people with no underlying artery disease.
- Heart attack risk is elevated many times over in the hour following use, independent of dose and of how long someone has been using
- Arrhythmias, including ventricular fibrillation
- Stroke, both ischemic and hemorrhagic, from blood pressure spikes and vessel spasm
- Aortic dissection
- Cardiomyopathy and heart failure with chronic use
Chest pain after cocaine use is a medical emergency. Go to an emergency department and tell them you used cocaine. It changes the treatment, because some standard cardiac drugs are inappropriate in cocaine associated chest pain, and staff need the information to treat you correctly.
Other physical harm
Nasal septum erosion and perforation from snorting, chronic sinus disease and loss of smell. Cough and black sputum from smoking. Severe bowel ischemia and perforation from blood vessel constriction. Acute kidney injury, seizures, hyperthermia and sexual dysfunction. With injection, add hepatitis C, HIV, endocarditis and abscesses. Levamisole, a common adulterant, can suppress white blood cell production and cause a distinctive skin condition affecting the ears and cheeks.
Withdrawal
Cocaine withdrawal produces no dangerous physical syndrome and a substantial psychological one. The crash lasts hours to three days: exhaustion, heavy sleep, ravenous appetite, flat mood, agitation, intense craving. Weeks one to four bring an inability to feel pleasure, poor concentration, low energy, irritability and cue triggered craving. Over one to three months mood and motivation gradually return, with craving spiking around specific triggers such as paydays, particular bars, particular people and particular music.
Depression and suicidal thinking can occur during the crash. If that is where you are, call or text 988.
Treatment
No medication is FDA approved for cocaine use disorder. Contingency management, structured incentives for verified abstinence, is the most effective intervention by a clear margin. The Matrix Model and cognitive behavioral therapy provide the structure around it, and the Community Reinforcement Approach deliberately rebuilds non drug sources of reward, which is what a depleted reward system needs. Treating co-occurring depression, bipolar disorder, ADHD, PTSD or anxiety is essential rather than optional.
Common questions
Is cocaine physically addictive?
It does not produce the dangerous physical withdrawal that alcohol or benzodiazepines do, and it is powerfully addictive. Cocaine drives compulsive use as strongly as almost any drug because of how fast and hard it hits the dopamine system.
Is it safe to drink while using cocaine?
No, and it is the most common dangerous combination. Together they form cocaethylene, which is more cardiotoxic and longer lasting than cocaine alone, and the alcohol masks how much cocaine has been taken.
Why do I feel depressed for weeks after stopping?
Heavy use depletes and dysregulates the dopamine system, and recovery of normal reward function takes weeks to months. During that window ordinary pleasures feel muted. It does improve.
How long does cocaine stay in your system?
Metabolites are typically detectable in urine for two to four days after occasional use and up to a week or more after heavy use. Hair testing detects months of use.
Sources
- National Institute on Drug Abuse, cocaine research report
- American Heart Association, management of cocaine associated chest pain
- SAMHSA, Treatment of Stimulant Use Disorders
- CDC, overdose deaths involving cocaine and synthetic opioid contamination
Need help now? In an emergency call 911. If you are in crisis or thinking about suicide, call or text 988 (Suicide and Crisis Lifeline; veterans press 1). For free, confidential treatment referrals 24 hours a day, call the SAMHSA National Helpline at 1-800-662-4357. You can also search licensed programs at FindTreatment.gov, or use our rehab directory and state listings.
Addiction Now publishes health journalism and reference material. This page is not medical advice, a diagnosis, or a treatment plan. Do not stop a prescribed medication without talking to a clinician. Withdrawal from alcohol, benzodiazepines and barbiturates can cause seizures and can be fatal without medical supervision.
Related reference pages
Reviewed and updated July 30, 2026 by the Addiction Now editorial team. Figures cited come from the CDC, NIDA, SAMHSA and the FDA.
