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Medically Reviewed

How Long Does Kratom Stay in Your System?

- 32 sections

Medically Reviewed: May 27, 2026

  |  

Medical Reviewer: Marleyna Ritter, LPCC, LCADCA

All of the information on this page has been reviewed and verified by a certified addiction professional.

Kratom has gained attention in recent years as more people use it for pain relief, energy, mood enhancement, and opioid withdrawal support. While some people view it as a natural alternative to prescription medications, healthcare professionals continue to raise concerns about kratom addiction, physical dependence, and drug interactions.

 

Bluegrass Recovery Center’s clinicians regularly work with individuals struggling with substance use disorders involving opioids, stimulants, alcohol, and increasingly, kratom. Understanding how long kratom stays in your system is important for both health and recovery, especially when drug testing, withdrawal symptoms, or addiction treatment are involved.

 

This guide explains how kratom detection works, how long kratom remains detectable, and the factors affecting how the body processes kratom alkaloids.

What Is Kratom?

Kratom comes from the leaves of a tropical tree called Mitragyna speciosa, which grows naturally in Southeast Asia. The plant contains kratom alkaloids that interact with opioid receptors in the brain. The primary alkaloid in kratom is mitragynine, while the major active alkaloid responsible for stronger opioid like effects is 7-hydroxymitragynine.

 

At low dose levels, kratom may produce stimulant effects such as increased alertness and energy. At higher doses, it may create sedative and pain-relieving effects similar to opioids. Some people use kratom to treat chronic pain or manage opioid withdrawal symptoms, although the FDA has not approved kratom for medical use.[1]

 

Because kratom interacts with opioid receptors, repeated use may lead to kratom abuse, physical dependence, and kratom withdrawal.

How Long Does Kratom Stay in Your System?

In most cases, kratom can stay in your system for several days. However, the exact kratom detection time varies widely.

 

The average kratom half-life of mitragynine is estimated to be around 24 hours. However, some studies suggest the half-life may range from 7 to 39 hours depending on individual metabolism and dosage.[2] Because of this long half-life, kratom metabolites may remain in a person’s system for multiple days after the last dose.

 

Generally, how long kratom stays in your system depends on:

  • Kratom dose
  • Frequency of kratom use
  • Body mass index
  • Kidney function
  • Kidney health
  • Liver metabolism
  • Body fat percentage
  • Hydration
  • Whether kratom was taken on an empty stomach
  • Test sensitivity
  • Specialized testing methods

 

Heavy or chronic users usually retain kratom metabolites longer than occasional users.

Understanding Kratom Detection

Understanding kratom detection requires looking at how the body processes kratom’s active compounds.

 

After ingestion, the body begins to metabolize kratom in the liver. The alkaloids are broken down into kratom metabolites and eventually excreted through urine and stool. Because some compounds are fat-soluble, they may accumulate in fatty tissues, especially in chronic users.[2]

 

The exact metabolization process is still being researched, but researchers know that mitragynine can remain detectable even after the psychoactive effects wear off.

 

For drug testing purposes, laboratories may attempt to detect mitragynine or other kratom alkaloids through specialized tests.

Can Drug Tests Detect Kratom?

A major concern for many users is whether kratom will produce a positive drug test result.

Most standard drug tests do not screen for kratom. Standard drug tests typically focus on substances like opioids, cocaine, amphetamines, THC, and benzodiazepines.

 

However, specialized testing methods can detect kratom alkaloids. Employers, treatment centers, and legal agencies may request kratom-specific testing if they suspect use.

In those situations, a person can absolutely test positive for kratom.

 

It is also possible, though less common, for kratom to interfere with certain screenings and contribute to a false positive drug test. More advanced confirmation testing is usually needed to verify results.

 

So while most standard drug tests will not detect kratom, specialized tests designed to detect mitragynine can identify use for several days.

Detection Windows for Kratom

The detection windows for kratom vary based on the type of test used.

Urine Tests

Urine tests are the most common form of kratom-specific testing. In many cases, urine samples can detect kratom for up to 5 to 7 days after the last use.

 

Heavy or chronic users may test positive for longer periods. Some reports suggest chronic users may retain kratom metabolites for more than one week.

 

Because urine tests are relatively affordable and easy to administer, they are commonly used for addiction treatment programs and specialized testing.

Blood Tests

Blood tests have a shorter detection window. Kratom is usually detectable in blood for about 24 hours after use, although higher doses may remain longer.

 

Blood or saliva tests are less common because they require more advanced laboratory equipment and are often used only in medical or forensic settings.

Saliva Tests

Saliva tests may detect kratom within a few hours after use and potentially up to 1 to 2 days afterward. However, kratom detection using saliva tests is still less standardized compared to urine testing.

Hair Testing

Hair follicle testing for kratom is possible through specialized tests, although it is not widely used. In theory, hair testing could identify kratom use for several months.

Factors Affecting How Long Kratom Stays in the Body

Several factors affecting kratom elimination can change how long kratom stays in your system.

Kratom Dose

Higher doses take longer for the body to process. Someone using concentrated extracts or frequent servings may experience longer detection windows.

Frequency of Use

Heavy or chronic users often accumulate kratom metabolites in the body. Chronic users may require significantly more time to fully eliminate the substance.

Individual Metabolism

A person’s metabolism plays a major role in kratom detection time. Faster metabolism generally means quicker elimination.

Body Fat

Because some kratom compounds may be fat-soluble, people with higher body fat percentages could retain kratom metabolites longer.

Kidney Function and Liver Health

Healthy kidney function helps remove waste products more efficiently. Poor kidney health or liver impairment may slow down elimination.

Food Intake

Taking kratom on an empty stomach can change absorption rates and may influence how quickly the body processes it.

Drug Interactions

Kratom interacts with other medications and substances in ways that may slow metabolism or increase risks. Combining kratom with opioids, alcohol, benzodiazepines, or stimulants may create dangerous complications.

 

The FDA has warned that kratom may cause seizures, liver toxicity, and substance use disorder, particularly when combined with other substances.[1]

Kratom Addiction and Dependence

Although some people believe kratom is safer than opioids, repeated use can still lead to kratom addiction and physical dependence.

 

The National Institute on Drug Abuse states that kratom can produce opioid- and stimulant-like effects.[3]

 

Research also shows increasing concerns about kratom abuse and poison center reports. A CDC report published in 2026 noted a rise in kratom-related poison center cases associated with high-potency alkaloid products.[4]

People who use kratom regularly may develop tolerance, meaning they require higher doses to achieve the same effects. Over time, this can increase dependence risks.

When Kratom Use Becomes a Problem

Although some people initially use kratom for pain relief or to manage opioid withdrawal symptoms, repeated use can gradually lead to kratom abuse and physical dependence. Over time, some individuals begin taking higher doses more frequently to achieve the same effects.

 

The treatment professionals at Bluegrass Recovery Center understand that many people who develop kratom addiction did not intend to misuse substances. In many cases, kratom use begins as an attempt to manage chronic pain, anxiety, fatigue, or opioid cravings before becoming difficult to control.

 

Warning signs of problematic kratom use may include:

  • Taking larger amounts than intended
  • Cravings or compulsive use
  • Withdrawal symptoms between doses
  • Mixing kratom with alcohol or other drugs
  • Difficulty stopping despite negative consequences
  • Needing kratom to function normally

 

Early intervention and professional treatment can help prevent long-term physical and psychological complications.

Kratom Withdrawal Symptoms

Stopping kratom after long-term use may trigger kratom withdrawal symptoms.

 

Common kratom withdrawal symptoms include:[5]

  • Anxiety
  • Irritability
  • Muscle aches
  • Insomnia
  • Sweating
  • Nausea
  • Depression
  • Fatigue
  • Restlessness
  • Mood swings

 

The severity of kratom withdrawal often depends on dosage, duration of use, and individual factors.

 

Withdrawal symptoms usually begin within 12 to 48 hours after the last dose and may continue for several days.

 

Because kratom withdrawal can vary from mild to severe depending on dosage and frequency of use, medical supervision may be beneficial for some individuals. Bluegrass Recovery Center offers treatment programs designed to help individuals safely manage withdrawal symptoms while addressing the underlying causes of substance use.

Kratom and Chronic Pain

Many people use kratom to treat chronic pain because of its opioid like effects. In Southeast Asia, kratom leaves have historically been used for pain relief and increased energy during physical labor.

 

Some users claim kratom helps reduce reliance on prescription opioids. However, healthcare organizations caution that scientific evidence remains limited, and the risks of addiction and drug interactions are still being studied.

 

The FDA currently does not recognize kratom as a safe or approved treatment for chronic pain.[1]

Statistics on Kratom Use and Safety

Kratom use in the United States has increased significantly over the past decade.

 

According to CDC data, kratom-related poison center reports have increased sharply as concentrated alkaloid products become more common.[4]

 

The CDC previously identified at least 91 overdose deaths involving kratom between 2016 and 2017, although many involved multiple substances.[6]

 

Additional reports indicate that opioids and other drugs are frequently present in kratom-related fatalities. 

 

These findings highlight ongoing concerns surrounding kratom abuse, especially when combined with other substances.

Can You Speed Up Kratom Elimination?

There is no scientifically proven way to rapidly remove kratom from a person’s system.

 

Some people attempt detox methods involving hydration, exercise, or supplements, but evidence supporting these methods is limited.

 

The safest approach is allowing the body time to naturally metabolize kratom. Staying hydrated, maintaining healthy kidney function, and avoiding additional substances may support the body’s normal elimination process.

When to Seek Professional Treatment for Kratom Addiction

If kratom use begins interfering with daily life, professional treatment may help.

 

Signs that addiction treatment may be needed include:

  • Cravings
  • Withdrawal symptoms
  • Needing higher doses
  • Inability to stop using
  • Using despite negative consequences
  • Combining kratom with other substances

 

Because kratom interacts with opioid receptors, some individuals experience dependence patterns similar to opioid addiction. In these situations, structured support can improve both safety and long-term recovery outcomes.

 

Bluegrass Recovery Center provides evidence-based care for individuals struggling with kratom abuse and other substance use disorders. Programs may include medical detox support, individual counseling, group therapy, relapse prevention planning, and long-term recovery support tailored to each person’s needs.

 

Seeking help early can reduce the risk of worsening withdrawal symptoms, polysubstance use, and ongoing physical dependence.

Get Connected to Kratom Abuse and Addiction Treatment 

So, how long does kratom stay in your system?

 

For most people, kratom remains detectable for several days, especially in urine tests. The exact timeline depends on kratom dose, frequency of kratom use, kidney function, body fat, individual metabolism, and the type of drug test administered.

 

While most standard drug tests do not screen for kratom, specialized testing methods can detect mitragynine and other kratom alkaloids through urine samples, blood tests, saliva tests, and other kratom-specific testing procedures.

 

As kratom use continues to rise in the United States, understanding kratom detection, kratom half-life, and the risks of physical dependence is increasingly important. Although some individuals use kratom for pain relief or chronic pain management, repeated use may lead to kratom addiction, withdrawal symptoms, and serious health concerns.

 

For individuals struggling to stop using kratom, professional support can make recovery safer and more manageable. Bluegrass Recovery Center offers compassionate, evidence-based addiction treatment designed to help individuals overcome substance use disorders and build long-term recovery.

 

Contact us today for more information on how we can help you recover from kratom abuse and addiction. 

Frequently Asked Questions About Kratom Detection

1. Can secondhand exposure to kratom cause a positive drug test?

There is currently no evidence that casual or secondhand exposure to kratom can cause someone to test positive on a drug test. Most specialized tests are designed to detect kratom metabolites that appear after direct ingestion of kratom products.

2. Does kratom affect prescription medications?

Yes. Kratom interacts with several medications, particularly those that affect the central nervous system. Combining kratom with opioids, antidepressants, benzodiazepines, stimulants, or alcohol may increase the risk of dangerous side effects, including respiratory depression, sedation, or seizures. Anyone taking prescription medications should speak with a healthcare provider before using kratom.

3. Are kratom extracts stronger than powdered kratom leaves?

Kratom extracts are often significantly more potent than traditional kratom leaves or powders because they contain concentrated levels of kratom alkaloids. These products may increase the risk of side effects, physical dependence, and overdose-like symptoms, especially when used frequently or at higher doses.

4. Is kratom legal in the United States?

Kratom is not federally classified as a controlled substance in the United States, but laws vary by state and local jurisdiction. Some states and municipalities have banned or restricted kratom products due to safety concerns and reports of kratom abuse. Regulations may continue to change as more research becomes available.

5. Can kratom use affect mental health?

Some individuals report anxiety, irritability, mood swings, or depression associated with frequent kratom use or kratom withdrawal. Heavy or chronic users may experience worsening mental health symptoms over time, particularly when kratom is combined with other substances or used to self-medicate underlying emotional conditions.

6. What should someone do if they cannot stop using kratom?

If someone struggles to stop using kratom despite negative consequences, professional support may help. Bluegrass Recovery Center provides evidence-based addiction treatment for individuals dealing with substance use disorders, including kratom abuse and physical dependence. Early treatment can improve recovery outcomes and help individuals safely manage withdrawal symptoms.

 

References:

  1. The Food and Drug Administration (FDA): FDA and Kratom
  2. MDPI: Clinical Pharmacokinetic Assessment of Kratom (Mitragyna speciosa), a Botanical Product with Opioid-like Effects, in Healthy Adult Participants
  3. The National Institute on Drug Abuse (NIDA): Kratom
  4. The Centers for Disease Control and Prevention (CDC): Increases in Kratom-Related Reports to Poison Centers — National Poison Data System, United States, 2015–2025
  5. Science Direct: Kratom withdrawal: Discussions and conclusions of a scientific expert forum
  6. CDC: Notes from the Field: Unintentional Drug Overdose Deaths with Kratom Detected — 27 States, July 2016–December 2017
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