Cocaine · Signs and Symptoms
Signs of Cocaine Addiction
The physical, behavioral and emotional red flags of cocaine addiction, what an overdose looks like, and how to help someone you love.
Medically reviewed by Dr. Eric Chegouri, MD, Medical Director · Last reviewed November 7, 2026
Cocaine addiction is easy to miss, sometimes even for the person living it. Use often starts socially, at parties, after work or on weekends, and many people keep up with careers and family responsibilities for a long time. The signs tend to show up in patterns rather than single moments: a crash every Monday, money that keeps disappearing, a mood that swings between wired and hollow.
This guide covers the physical, behavioral, psychological and financial signs of cocaine addiction, the clues people find at home, what an overdose looks like and how clinicians decide whether use has become a disorder. If you are worried about yourself or someone you love, it also explains how to start the conversation and when to call for help.
Quick answer
Common signs of cocaine addiction include dilated pupils, frequent nosebleeds or sniffing, bursts of energy followed by crashes, binge use over nights or weekends, secrecy, unexplained money problems, and anxiety, paranoia or depression between uses. Using more than intended or being unable to stop are key warning signs. Reggie's, a DHCS-licensed, Joint Commission–accredited program in Los Angeles, offers free, confidential assessments 24/7 at (818) 355-1200.
At a glance
- Most visible signs
- Energy spikes, then crashes; sniffing, nosebleeds, sleeplessness
- Behavior pattern
- Binges, secrecy, frequent bathroom trips, missing money
- Mood signs
- Irritability, paranoia, depression after use
- Emergency signs
- Chest pain, seizures, overheating, slow breathing; call 911
- Hidden risk
- Fentanyl contamination; keep naloxone nearby
- Next step
- Anonymous Self-Check or a free call with admissions
What are the physical signs of cocaine use?
Cocaine is a short-acting stimulant, so physical signs often come and go within an hour or two of use, then give way to the opposite once it wears off. Look for clusters of signs and repeated patterns rather than any one symptom.
While high
- Dilated pupils and a restless, wide-awake look
- Fast heart rate, sweating or feeling hot
- Rapid speech and jumping between topics
- Little interest in food
- Jaw tension, fidgeting or twitching
- Frequent sniffing or touching the nose
Over time
- Frequent nosebleeds, a runny nose or loss of smell
- Hoarse voice or chronic cough, especially with crack
- Burns on lips or fingertips from hot pipes
- Weight loss and a worn-out look
- Disrupted sleep and exhaustion after weekends
- Track marks or skin infections if injecting
Some of these signs have other explanations, such as allergies, anxiety or a demanding schedule. What matters is whether they show up together, repeatedly and alongside the behavior changes below.
What are the behavioral signs of cocaine addiction?
Behavior is usually where cocaine addiction becomes visible. Because the high is short, people tend to redose again and again, which creates recognizable patterns:
- Using in binges that run through the night or across a whole weekend
- Using more, or for longer, than planned, and promising to cut back
- Frequent trips to the bathroom or the car during social events
- Disappearing for hours with vague explanations
- Calling in sick or missing obligations after a weekend, often on Mondays
- New friends or social circles built around nightlife or partying
- Pairing cocaine with heavy drinking, often to extend the night
- Taking risks while high, such as driving or unsafe sex
The pairing with alcohol deserves attention. NIDA notes that cocaine and alcohol combine in the liver to form cocaethylene, which adds strain to the heart. If drinking is part of the pattern, our alcohol addiction page explains why stopping heavy drinking needs medical support.
How does cocaine addiction change mood and thinking?
Cocaine drives dopamine far above normal levels, and the brain adapts by turning down its own reward system. Over time, that shows up as a rollercoaster of mood and thinking:
- Overconfidence, talkativeness or grandiosity while high
- Irritability, impatience and short temper as it wears off
- Anxiety, panic or paranoia, sometimes feeling watched or followed
- Low mood, guilt and emptiness in the days after use
- Strong cravings triggered by cash, certain people, music or places
- Trouble concentrating and losing interest in things that used to matter
Depression after a binge can be severe. If you or someone you love has thoughts of suicide, call or text 988, the Suicide & Crisis Lifeline, any time. Our guide to cocaine withdrawal explains why the crash happens and how long it tends to last.
What are the social and financial warning signs?
Cocaine is expensive, and its costs ripple outward. Families often notice the money before anything else:
- Unexplained cash withdrawals, maxed-out cards or new debts
- Selling belongings or borrowing money with shifting stories
- Missing money or valuables at home
- Falling behind at work, or a sudden drop in performance after strong years
- Tension, arguments or broken promises in close relationships
- Withdrawing from family events in favor of a new social scene
- Legal trouble, such as a DUI or possession charge
What does cocaine paraphernalia look like?
Families sometimes find physical clues before they see obvious signs. None of these items prove cocaine use on their own, but together with the patterns above they are worth taking seriously:
| Form of use | Items you might find |
|---|---|
| Snorting powder | Small plastic baggies or folded paper, rolled-up bills or cut straws, small mirrors or flat surfaces with white residue, razor blades or cards, tiny spoons or keychain vials |
| Smoking crack | Short glass tubes or pipes, often blackened at one end; lighters; small pieces of steel wool or copper mesh used as filters; small off-white rocks |
| Injecting | Syringes, spoons with burn marks, cotton balls, tourniquets or belts |
| Hiding use | Eye drops, nasal sprays, breath mints, hidden compartments, a second phone |
What are the short- and long-term effects of cocaine?
Cocaine affects nearly every system in the body. Some effects are immediate; others build quietly over months or years.
| Body system | Short-term | Long-term |
|---|---|---|
| Heart and blood vessels | Racing heart, higher blood pressure, narrowed blood vessels | Higher risk of heart attack, irregular rhythms and stroke |
| Brain and mood | Euphoria, energy, anxiety, paranoia | Depression, irritability, attention and memory problems |
| Nose, lungs and mouth | Congestion, nosebleeds, cough | Loss of smell, nasal damage, lung damage with crack |
| Body overall | Higher body temperature, less appetite, poor sleep | Weight loss, malnutrition, seizures |
| Infection risk | Risky choices while high | HIV and hepatitis C risk with injecting or shared equipment |
According to NIDA, cocaine can trigger a heart attack or stroke even in young people and first-time users. The encouraging part is that many of these risks begin to fall once cocaine use stops.
What are the signs of a cocaine overdose?
A cocaine overdose happens when the heart, brain or body temperature is pushed past a safe limit. It can happen to occasional users and is not only about how much was taken.
While you wait for help, keep the person somewhere cool and calm, loosen tight clothing and do not leave them alone. If they stop breathing, follow the dispatcher's instructions.
How is cocaine addiction diagnosed?
Clinicians diagnose cocaine use disorder, part of the broader category of stimulant use disorder, using criteria from the American Psychiatric Association's DSM-5. In plain language, the criteria ask whether, over the past year, cocaine use has led to problems such as:
- Using more, or for longer, than you meant to
- Wanting to cut down but not being able to
- Spending a lot of time getting, using or recovering from cocaine
- Strong cravings or urges to use
- Falling behind at work, school or home because of use
- Continuing even though it causes problems in relationships
- Giving up activities you used to care about
- Using in situations that are physically risky
- Continuing despite physical or mental-health problems it causes or worsens
- Needing more to get the same effect (tolerance)
- Feeling withdrawal, such as a crash, when you stop
Under DSM-5, meeting two or three criteria generally points to a mild disorder, four or five to moderate, and six or more to severe. Only a qualified clinician can make a diagnosis, but if several of these feel familiar, our free, anonymous Self-Check is a private place to start. Our broader guide to the signs of addiction covers other substances too.
How do you talk to someone about cocaine use?
The goal of a first conversation is not to win an argument. It is to open a door your loved one can walk through when they are ready.
- Pick a calm, sober moment. The morning after is usually better than the night of.
- Describe, do not diagnose. “I noticed money missing and you seemed exhausted all week” lands better than labels.
- Lead with care. Say why you are worried and that you are on their side.
- Have a next step ready. Know the phone number, the program and what insurance might cover.
- Look after yourself too. Set boundaries you can keep and find your own support.
Our family resources and the free guide The First 48 Hours can help you plan what to say and what to do if they say yes.
When is it time to get help for cocaine addiction?
You do not have to wait for a crisis. It is time to reach out if cocaine use keeps happening after you have decided to stop, if the crashes are getting darker, if money or relationships are suffering, or if you have had any heart, breathing or overdose scare. It is time right now if you have thoughts of suicide: call or text 988.
Treatment for cocaine addiction is effective and does not have to start with a dramatic decision. At Reggie's, care can begin with medical detox in Sun Valley, continue with residential treatment and step down to outpatient care and sober living. Learn how the full program works on our cocaine rehab page, or check your coverage on our insurance page.
Key takeaways
- Cocaine addiction often shows up as patterns: binges, crashes, secrecy and missing money.
- Physical signs include dilated pupils, nosebleeds, sleeplessness and weight loss.
- Chest pain, seizures, overheating or slow breathing after use mean call 911.
- Fentanyl contamination makes naloxone an important safety tool.
- Several DSM-5 criteria over the past year suggest it is time for an assessment.
Sources & further reading
- NIDA — Cocaine research topic — cocaine effects, cocaethylene and treatment research.
- American Psychiatric Association (APA) — DSM-5 criteria for substance use disorders.
- Centers for Disease Control and Prevention (CDC) — Overdose Prevention — fentanyl and stimulant-involved overdoses.
- 988 Suicide & Crisis Lifeline — call or text 988, available 24/7.
- SAMHSA National Helpline — free, confidential, 24/7 treatment referral at 1-800-662-4357.
This page is educational and does not replace medical advice. If you are in crisis, call 911 or call or text 988.
FAQs
Signs of Cocaine Addiction Questions
While high, people often have dilated pupils, fast speech, restlessness, sweating and little appetite, and may sniff or touch their nose often. Within an hour or two, that can flip into irritability, fatigue and low mood. A pattern of energy spikes and crashes, frequent bathroom trips and unexplained absences is more telling than any single sign.
Early signs include using more often or for longer than planned, needing cocaine to enjoy social events, feeling low or craving it in the days after use, spending more money than intended and hiding use from people close to you. Promising yourself to cut back and not managing to is one of the clearest early warning signs.
Yes. Many people with cocaine use disorder keep jobs and family roles for a long time, often using in weekend or after-work binges. Functioning does not rule out addiction. Signs like repeated crashes, money problems, rising anxiety or depression and difficulty stopping suggest use has become a disorder that deserves an assessment.
Crack is smoked, which reaches the brain quickly and produces a very short, intense high, so people often use repeatedly in a short time. Signs can include burns on the lips or fingertips, a chronic cough or hoarse voice, short glass pipes, lighters and small pieces of steel wool or mesh, along with rapid weight loss and long periods without sleep.
It can be. Weekend binge patterns can still meet criteria for cocaine use disorder, especially if you use more than you planned, feel low and crave cocaine afterward, or find work and relationships affected. Our anonymous Self-Check or a free call with admissions can help you sort out whether treatment, and what level of care, makes sense.
Stay as calm as you can and wait for a sober moment to talk. Describe what you found and why you are worried, without accusations. Keep naloxone in the home, because fentanyl has been found in the cocaine supply. Our family resources and free guide The First 48 Hours can help you plan the conversation and next steps.
Many PPO plans cover detox, residential and outpatient treatment for cocaine use disorder at least in part, depending on your plan. Reggie's works primarily with PPO plans and verifies benefits for free, usually in 15 to 30 minutes, and your employer is not notified. Call (818) 355-1200 to check your coverage.