Cocaine can cause stomach pain, and doctors treat belly pain after cocaine use as a possible sign of real damage rather than simple indigestion. The drug affects the blood supply of the whole digestive tract, from the stomach to the colon.1PubMed Central. Cocaine-Induced Chronic Bowel Ischemia Manifesting As Small Bowel Obstruction The people it harms tend to be young adults who don’t expect gut problems at their age.2PubMed. Cocaine-associated ischemic colitis That makes pain after cocaine worth taking seriously even in someone otherwise healthy.
How Cocaine Cuts Off Blood to the Gut
Cocaine keeps one of the body’s stress chemicals active for longer, and that makes blood vessels clamp down hard.3PubMed Central. Cocaine-associated non-occlusive ischemic colitis mimicking appendicitis in a young woman: a case report It also acts directly on the arteries of the stomach and intestines, narrowing them.4PubMed Central. Atypical Gastric Ulcer With Impending Perforation due to Cocaine Use The gut can then lose blood flow.5PubMed Central. Cocaine-associated non-occlusive ischemic colitis mimicking appendicitis in a young woman: a case report Tissue without enough blood runs short of oxygen, starts to hurt, and then begins to break down.
Gut tissue needs a steady supply of blood to stay alive and keep working, so when it is starved the pain can be intense. It is often worse than the belly feels when someone presses on it, and doctors treat that mismatch as a classic reason to suspect a blood-flow problem. The same narrowing explains cocaine’s better-known chest pain and heart attacks.
Other damage adds to the squeeze. Cocaine also injures the lining of blood vessels and can cause tiny clots that block small vessels.6PubMed Central. Cocaine-associated non-occlusive ischemic colitis mimicking appendicitis in a young woman: a case report7PubMed Central. Atypical Gastric Ulcer With Impending Perforation due to Cocaine Use It slows the stomach’s movement and can raise pressure inside it.8PubMed Central. Atypical Gastric Ulcer With Impending Perforation due to Cocaine Use Because the big arteries aren’t blocked, this damage may not show up on standard scans.9PubMed Central. Cocaine-associated non-occlusive ischemic colitis mimicking appendicitis in a young woman: a case report A normal-looking first scan doesn’t prove the gut is fine.
This can happen even with occasional use. The narrowing comes with each dose, not only after years of heavy use, and reported cases include people with a single recent episode. Larger amounts mean stronger and longer narrowing.
For the person, the pain often arrives as a deep, constant or cramping ache that is hard to pin to one spot, and it can build over hours rather than hitting all at once. It’s easy to blame a bad meal, a hangover, or the comedown, which is why many people wait before seeking care. Nausea, vomiting, or diarrhea often come along, and the diarrhea may later turn bloody as the bowel lining is damaged. Pain that keeps worsening instead of fading as the drug wears off is one sign this may be more than an ordinary upset stomach.
What the Pain Can Mean Inside Your Body
The most common gut problems from cocaine are ulcers, dead bowel tissue, holes in the gut, and inflamed intestines. Bleeding is less common.10PubMed Central. Cocaine-Induced Chronic Bowel Ischemia Manifesting As Small Bowel Obstruction In the colon, the problem is called ischemic colitis, meaning damage to the colon from poor blood flow.11PubMed. Cocaine-associated ischemic colitis In reported cases it affected men and women about equally, at an average age around 33.12PubMed. Cocaine-associated ischemic colitis In one case it mimicked appendicitis in a young woman.13PubMed Central. Cocaine-associated non-occlusive ischemic colitis mimicking appendicitis in a young woman: a case report
Colon damage from poor blood flow usually strikes people over 60. With cocaine it shows up in people in their 20s and 30s, and doctors may not think of it unless they hear about the drug use. It is a blood-flow injury, not an infection, so it differs from food poisoning. The typical picture is sudden cramping pain followed within hours by urgent, often bloody, diarrhea. Many mild cases heal as blood flow returns, but severe ones can destroy the full thickness of the bowel wall. Because the early symptoms look like a stomach bug, the cocaine link is easy to miss unless the person mentions it.
Patches of the stomach starved of blood can form ulcers.14PubMed Central. Atypical Gastric Ulcer With Impending Perforation due to Cocaine Use An ulcer can deepen until it threatens to make a hole in the stomach wall.15PubMed Central. Atypical Gastric Ulcer With Impending Perforation due to Cocaine Use Stomach contents can then leak into the belly, which is a surgical emergency. A hole often brings sudden, severe pain that makes the belly rigid and any movement painful, so many people lie very still. Leaked acid and bowel contents inflame the lining of the belly and can lead to a dangerous infection. Pain may ease briefly after the first surge, which can falsely reassure, but the person is still in danger and needs surgery.
The pancreas and liver can also be hit. Cocaine is now considered a possible cause of pancreatitis, an inflamed pancreas, in users with belly pain.16PubMed Central. Acute pancreatitis secondary to cocaine use: a case-based systematic literature review Narrowed vessels can reduce blood to the pancreas, especially in people with a weak heart.17Chest. Cocaine-Induced Acute Pancreatitis: A Rare Cause of Upper Abdominal Pain In one reported case, cocaine caused acute liver failure along with pancreatitis.18PubMed Central. A Case of Cocaine-Induced Acute Liver Failure Reversed With N-Acetylcysteine
The location of the pain gives some clues. An inflamed pancreas often hurts in the upper belly and can spread to the back. Colon damage tends to cause lower or side belly pain and cramping. Ulcer pain usually sits high in the middle of the belly. Any of these can start hours to days after use.
Warning Signs That Need Emergency Care
About 1 in 4 people with cocaine-related colon damage died, compared with about 1 in 13 when the cause wasn’t cocaine.19PubMed. High mortality of cocaine-related ischemic colitis: a hybrid cohort/case-control study Waiting at home to see if it passes is risky.
- Severe pain, or pain that keeps getting worse over hours
- Blood in stool, or black, tarry stool
- Vomiting, especially blood or material that looks like coffee grounds
- A hard, swollen, or very tender belly
- Fever, fast heartbeat, dizziness, or fainting
- Chest pain along with belly pain
Brief cramping that fades within a few hours is less worrying, unless any of the signs above appear. Pain that is out of proportion to how you look, or that isn’t easing, is a red flag. If you’re unsure, going in is safer than waiting. Don’t take more cocaine or alcohol to dull the pain.
Symptoms can also be misleading. Dying bowel tissue can cause severe pain even when the belly feels soft, so a gentle touch that feels fine is not reassurance. If severe pain suddenly eases, that does not mean recovery; nerves in damaged tissue may have stopped signaling. A pounding heart and anxiety from the cocaine itself can mimic or mask warning signs, so judge by the belly pain, not the jitters. Pain that lasts beyond the point where the drug’s effects should have worn off deserves attention.
While getting help, call emergency services if the pain is severe or the person is confused. Don’t eat or drink, in case surgery is needed. Note when cocaine was last used and how much, and bring along anything else taken, including alcohol and pills.
Cutting Agents Can Cause Their Own Damage
More than half the cocaine sold in the US contains levamisole, a livestock deworming drug.20Cutis. Levamisole-Induced Vasculopathy With Gastric Involvement in a Cocaine User It can trigger inflammation of blood vessels in the skin and other organs.21Cutis. Levamisole-Induced Vasculopathy With Gastric Involvement in a Cocaine User This can cause painful purple skin patches, joint and muscle pain.22PubMed. Levamisole-induced vasculopathy with gastric involvement in a cocaine user23PubMed Central. Levamisole-contaminated cocaine: a hairy affair
Dealers add it as a cheap bulking agent. It looks and mixes like cocaine, so buyers can’t detect it. Levamisole can set off an immune reaction that attacks the body’s own small blood vessels and lowers certain white blood cells, weakening defense against infection. Because it is a contaminant rather than the cocaine itself, the reaction can strike people who use only occasionally. A fever or sore throat along with these symptoms can signal low white cell counts and needs prompt care.
It can reach the gut too. In one case, a woman with these skin patches also had bleeding sores in her esophagus and stomach that looked like the skin lesions.24PubMed. Levamisole-induced vasculopathy with gastric involvement in a cocaine user People with levamisole reactions have reported belly pain.25Cutis. Levamisole-Induced Vasculopathy With Gastric Involvement in a Cocaine User In another case it caused a section of bowel to fold into itself, a blockage.26PubMed Central. Levamisole-contaminated cocaine: a hairy affair
Look for purple or blackish patches, often on the ears, cheeks, nose, or legs. Patches together with belly pain suggest the gut may be involved. Tell doctors about any skin changes, since a biopsy can confirm the cause.
Cocaine itself narrows arteries, while levamisole inflames vessel walls, so the two can produce overlapping gut injury through different routes. Doctors usually can’t separate them by symptoms alone, though blood tests for immune markers and a skin biopsy can point toward levamisole. Either way, the step is the same: seek care and disclose use. Stopping cocaine is the main way to prevent a repeat.
Why Alcohol Makes It Worse
When cocaine and alcohol are taken together, the liver makes cocaethylene.27PubMed Central. Cocaethylene: When Cocaine and Alcohol Are Taken Together Cocaethylene is more harmful to the heart and liver than cocaine.28PubMed Central. Cocaethylene: When Cocaine and Alcohol Are Taken Together It lasts about twice as long, roughly 2 hours versus 1.29PubMed Central. Cocaethylene: When Cocaine and Alcohol Are Taken Together The body stays under stress longer after a night of both.
Alcohol itself irritates the stomach and pancreas, so combined use stacks irritation on top of reduced blood flow. It inflames the stomach lining and raises acid, which can make cocaine-related ulcers more likely to hurt and bleed. Heavy drinking is a leading cause of pancreatitis, so adding cocaine means two separate pancreas risks at once. Vomiting after a night of both can be written off as drinking, delaying recognition of something more serious, and alcohol can dull judgment about pain. Tell doctors about the drinking as well as the cocaine.
Does Snorting, Smoking, or Swallowing Matter
Gut damage and holes have historically been tied most to swallowing cocaine.30PubMed Central. Multiple Gastrointestinal Complications of Crack Cocaine Abuse Swallowed cocaine sits in the stomach and intestines at high concentration, so it can injure the lining directly as well as narrowing vessels. Absorption through the gut is slower and less predictable, so effects can come later and last longer than people expect.
Smoked crack cocaine has also caused multiple gut complications.31PubMed Central. Multiple Gastrointestinal Complications of Crack Cocaine Abuse Smoked crack reaches the blood very quickly, producing a sharp surge of vessel narrowing. Snorted cocaine is absorbed through the nose into the bloodstream, which carries it to the arteries feeding the gut. Any route can narrow gut blood vessels, so a different route changes how belly pain arrives, not whether it can. Carrying swallowed packets of cocaine risks a sudden overdose if one breaks, and may need surgery.32PubMed Central. Gastrointestinal cocaine body packing. Belly pain with swallowed packets is an emergency.
What Happens at the Hospital
Diagnosis is hard when doctors don’t know about drug use.33PubMed Central. Levamisole-contaminated cocaine: a hairy affair Being honest helps them look for blood-flow damage early. Scans can show gut ischemia and organ damage from drug use.34Radiographics. Abdominal Imaging Manifestations of Recreational Drug Use Staff need the information to treat you safely, health privacy laws generally protect what you tell them, and hiding use can delay the right diagnosis.
In the first hour, staff check vital signs, ask where and when the pain started, and usually place an IV for fluids and pain control. Doctors will ask directly what was used, how much, how, and when, because it changes which tests they order. A urine drug screen may be done, but your own account is more useful because screens can miss contaminants and timing.
Expect blood tests to check for infection and for problems with the pancreas and liver. A CT scan looks at the bowel wall, and a scope may look inside the stomach or colon. Doctors may repeat tests because early scans can look normal.
Treatment combines supportive care with surgery when needed.35PubMed Central. Cocaine Gut: A Rare Case of Cocaine-Induced Esophageal, Gastric, and Small Bowel Necrosis Dead tissue must be removed to stop further damage and improve the chances of recovery.36PubMed Central. Cocaine Gut: A Rare Case of Cocaine-Induced Esophageal, Gastric, and Small Bowel Necrosis
Cocaine in Pregnancy and Babies’ Guts
Cocaine before birth can reduce blood flow to a baby’s gut.37PubMed. Time of onset of necrotizing enterocolitis in newborn infants with known prenatal cocaine exposure That raises the risk of necrotizing enterocolitis, a dangerous condition in newborns in which bowel tissue becomes inflamed and dies.38PubMed. Cocaine exposure in a term neonate. Necrotizing enterocolitis as a complication. About 12 in 100 exposed babies developed it versus 3 in 100 unexposed.39PubMed. Time of onset of necrotizing enterocolitis in newborn infants with known prenatal cocaine exposure It can strike full-term babies who usually aren’t at risk.40PubMed. Cocaine: a risk factor for necrotizing enterocolitis
A newborn’s intestines are immature, so a drop in blood flow injures them more easily than an adult’s. Cocaine crosses the placenta, so the baby gets the same vessel-narrowing effect during pregnancy. The disease typically strikes premature babies, which is why its appearance in a full-term infant is a clue worth reporting. Starting feeds can unmask the problem, since a stressed gut struggles to handle milk.
Signs included a swollen belly, bloody stools, vomiting, and trouble feeding.41PubMed. Cocaine: a risk factor for necrotizing enterocolitis In one group of four affected babies, one died.42PubMed. Cocaine: a risk factor for necrotizing enterocolitis Tell the baby’s care team about cocaine use in pregnancy. After birth, feeding problems in the first days deserve a call to the doctor, and a tight, bloated belly needs urgent care. Early treatment helped most babies recover.