Short answer
Yes. Kratom can affect the liver, although serious liver injury appears uncommon relative to the number of people using kratom.
The most consistent pattern in the medical literature is cholestatic or mixed liver injury, usually:
- Appearing within about 1 to 8 weeks after starting regular use.
- Associated with fatigue, nausea, itching, dark urine, and jaundice.
- Showing elevated bilirubin and alkaline phosphatase, sometimes with elevated AST and ALT.
- Improving after kratom is stopped in most reported cases.
Published reports remain limited compared with the number of people who use kratom. LiverTox considers kratom a likely cause of clinically apparent liver injury and describes multiple jaundice cases in the literature.
What it means
What cholestatic liver injury means.
The liver makes bile to help digest fats and remove waste products. Cholestasis means bile flow is impaired or bile components build up in the body.
Common symptoms include:
- Jaundice: yellowing of the skin or whites of the eyes.
- Dark urine: tea-colored or cola-colored urine.
- Pale stools: clay-colored or unusually light stool.
- Itching: sometimes severe.
- Fatigue.
- Nausea.
- Right upper-abdominal discomfort.
Common lab abnormalities can include:
- Elevated bilirubin.
- Elevated alkaline phosphatase.
- Elevated GGT.
- Variable elevation of AST and ALT.
These findings are not specific to kratom. Gallstones, viral hepatitis, alcohol-related disease, autoimmune disease, medication injury, and other causes can look similar. But in someone using kratom regularly, kratom should be on the differential.
Higher risk
Who appears to be at higher risk?
The true risk factors are not fully established. Based on case reports and clinical concern, risk may be higher with:
- Daily kratom use.
- Higher total dose.
- Extracts or shots.
- Concentrated 7-OH products.
- Concurrent alcohol use.
- Use of other medications that can affect the liver.
- Pre-existing liver disease.
- Hepatitis, cirrhosis, or fatty liver disease.
- Older age or medical frailty.
There is no clearly established safe dose or safe duration for kratom from a liver perspective.
If symptoms appear
What to do if you have liver symptoms.
If you have jaundice, dark urine, pale stools, severe itching, right-upper-abdominal pain, or profound fatigue, do not continue routine kratom use and wait to see what happens.
A safer plan:
- Stop kratom and 7-OH products unless a clinician gives you a different urgent plan.
- Seek medical evaluation promptly.
- Ask for liver tests, including ALT, AST, alkaline phosphatase, bilirubin, and possibly GGT and INR.
- Bring the product label or a photograph.
- Disclose alcohol, acetaminophen, supplements, antibiotics, psychiatric medications, seizure medications, and other substances.
Do not assume the problem is mild because the product is sold legally or marketed as natural.
When dependent
What if you are dependent and cannot stop?
If liver injury is suspected, the medical priority is to stop the suspected liver irritant and evaluate the liver. But withdrawal still needs to be managed safely.
Options may include:
- Close outpatient monitoring.
- Symptom medications.
- A structured taper only if the clinician feels it is safer than abrupt discontinuation.
- Buprenorphine treatment in selected cases, especially if the kratom or 7-OH pattern is opioid-like and withdrawal is severe.
Buprenorphine is not automatically liver-risk free. The prescribing information includes hepatic cautions, and patients with liver disease need clinical monitoring. But for some patients, medically supervised treatment may be safer than continuing high-dose kratom or 7-OH while jaundiced.
Recovery
How long does recovery take?
Most published cases improve after kratom is stopped. Symptoms and labs may improve over weeks, but the timeline varies.
More severe cases can require hospitalization. Rare reports describe acute liver failure or multi-organ complications. That is why jaundice, dark urine, pale stools, and severe itching should be evaluated promptly.
Testing
Should regular kratom users get liver tests?
It is reasonable to discuss liver testing with a clinician if you:
- Use kratom daily.
- Use extracts or 7-OH products.
- Drink alcohol regularly.
- Take medications that affect the liver.
- Have hepatitis, fatty liver disease, cirrhosis, or abnormal prior liver tests.
- Have symptoms such as itching, dark urine, or fatigue.
A normal liver panel is reassuring for that moment, but it does not prove future safety.
Unknowns
What we do not know.
Important unknowns remain:
- The true rate of kratom-associated liver injury.
- Whether some people have genetic susceptibility.
- Whether risk differs strongly by product type, contaminant, or dose.
- Whether concentrated 7-OH products carry a different liver risk than natural kratom leaf.
- Whether long-term light use has measurable liver risk.
Because products vary widely in strength, labeling, purity, and contaminants, individual risk is difficult to predict.
Treatment
Treatment for kratom and 7-OH dependence is available online.
If kratom use has become hard to stop and you have liver concerns, speak with a clinician promptly. MyStreetHealth treats kratom and 7-OH dependence through secure telehealth visits in Virginia, West Virginia, Maryland, Washington DC, and Ohio. Same-day visits are often available when the schedule permits. No insurance is required.
Medical note
Kratom and 7-OH products vary widely in strength, purity, labeling accuracy, and legal status. This page is educational and does not replace medical care. Seek urgent medical advice for jaundice, severe vomiting or dehydration, chest pain, confusion, fainting, seizure, severe sedation, slowed breathing, pregnancy, or use with alcohol, benzodiazepines, opioids, gabapentin, pregabalin, or other sedatives.