What Is Kratom Drug? Understanding Kratom, Its Effects, Risks, and Legal Status

Kratom is a psychoactive botanical substance derived from the leaves of Mitragyna speciosa, a tropical tree in the coffee family. Its leaves contain naturally occurring alkaloids, especially mitragynine and 7-hydroxymitragynine (7-OH), that can interact with opioid receptors and other biological systems. Depending on the preparation and amount used, people have reported stimulant-like effects, relaxation, sedation, and opioid-like effects.

So, what is kratom drug? The answer depends on what the word “drug” means. Pharmacologically, kratom is a drug-like, psychoactive botanical substance because it contains chemicals that act on the body and brain. However, that does not automatically mean kratom is a legally controlled drug. In the United States, for example, the DEA's 2024 resource guide stated that natural kratom was not controlled under the federal Controlled Substances Act, although state and local restrictions could apply. More recently, federal authorities have taken separate action concerning concentrated and synthetic 7-OH products.

Kratom is therefore best understood by separating its botanical identity, pharmacology, health effects, medical status, and legal classification rather than putting it into a single category such as “opioid” or “stimulant.”

What Is Kratom?

Kratom, scientifically known as Mitragyna speciosa, is a tropical evergreen tree native to Southeast Asia. It belongs to the Rubiaceae, or coffee, family and has a history of traditional use in countries including Thailand, Malaysia, and Indonesia.

Traditionally, people in Southeast Asia have used kratom leaves in several ways, including chewing fresh leaves or preparing them as tea. Traditional use has included attempts to combat fatigue and support productivity, as well as cultural and ceremonial uses. NCCIH notes that kratom has also historically been used for symptoms such as pain and diarrhea and sometimes as a substitute for opium.

Modern kratom products can look quite different from traditional leaf preparations. Depending on the product, kratom may be sold as:

• Kratom powder
• Kratom capsules
• Kratom tea
• Kratom extracts
• Dried or crushed kratom leaves
• Other concentrated kratom products

The chemical composition can vary considerably among products, which is one reason researchers continue to investigate kratom safety and pharmacology.

For readers interested in understanding the types of products available without treating them as medical products, Canuck Kratom's general kratom collection provides an example of how kratom products are categorized commercially.

Is Kratom a Drug?

The word drug has several meanings, and this creates much of the confusion surrounding kratom.

Kratom as a pharmacologically active substance

In pharmacology, a drug is broadly understood as a substance capable of producing a biological effect in the body. Under that broad scientific meaning, kratom clearly qualifies as a pharmacologically active botanical substance.

Its alkaloids interact with receptors and other biological pathways. Kratom can therefore produce measurable effects on the nervous system and other parts of the body.

Kratom as a psychoactive substance

Kratom is also a psychoactive substance, meaning that its active compounds can affect brain function and subjective experience.

Reported effects include:

• Increased alertness or energy
• Changes in mood
• Relaxation
• Drowsiness
• Sedation
• Opioid-like effects
• Changes in heart rate
• Nausea or dizziness

The effects are not uniform. NCCIH describes both stimulant-like effects and effects resembling those associated with opioids and sedatives.

Kratom as a legally controlled drug

This is a separate question.

A substance can be pharmacologically active without being listed as a controlled substance under a particular country's drug-control laws. Consequently, saying that kratom is a “drug” in a scientific sense does not automatically mean that it is a controlled substance legally.

This distinction is essential when discussing kratom drug classification.

What Type of Drug Is Kratom?

There is no single simple pharmacological label that completely describes kratom.

It is sometimes described as:

• A psychoactive botanical
• An herbal substance
• An opioid-receptor-active substance
• A substance with stimulant-like effects
• A substance with sedative and opioid-like effects

None of these descriptions alone tells the entire story.

Kratom's effects depend on its chemical constituents, product composition, individual biology, and other factors. Research also remains limited compared with the evidence base for established medicines.

That is why describing kratom simply as a stimulant, opioid, or depressant can be misleading.

What Compounds Are in Kratom?

Kratom contains numerous naturally occurring kratom alkaloids. Two of the most discussed are mitragynine and 7-hydroxymitragynine.

Mitragynine

Mitragynine is generally regarded as the principal alkaloid in kratom leaves by quantity. It contributes substantially to kratom's pharmacological activity and has been the subject of laboratory, animal, pharmacokinetic, and human research.

7-Hydroxymitragynine

7-hydroxymitragynine, commonly abbreviated 7-OH, is another naturally occurring kratom alkaloid. It is present in much smaller amounts naturally than mitragynine, but it has significant opioid-receptor activity.

The distinction between naturally occurring 7-OH in kratom leaf and concentrated or enhanced 7-OH products is particularly important today. The FDA has specifically raised concerns about products containing added or enhanced 7-OH, rather than treating those concentrated products as interchangeable with ordinary botanical kratom leaf.

How Does Kratom Work?

Kratom pharmacology is complicated because its constituents interact with more than one biological system.

Kratom and opioid receptors

Mitragynine and 7-hydroxymitragynine interact with opioid receptors, including mu-opioid receptors in the brain. This helps explain why some kratom effects can resemble opioid effects. NCCIH specifically identifies interactions between these kratom compounds and opioid receptors.

However, this does not mean that kratom is simply the same thing as morphine, heroin, oxycodone, or another conventional opioid.

Kratom's chemical composition and pharmacological profile are different, and its effects cannot be reduced to those of conventional opioids.

Other receptor systems

Researchers are also investigating kratom's interactions with other systems, including serotonin receptors and adrenergic receptors. These additional interactions may help explain why kratom cannot be accurately classified using only its opioid-receptor activity.

The precise contribution of each receptor system to the effects people experience remains an active area of research.

Kratom metabolism

Kratom's effects are also influenced by metabolism. Mitragynine and 7-hydroxymitragynine undergo metabolic processes in the body, and researchers are studying how these processes influence their pharmacological effects. NCCIH research materials note the importance of metabolism, blood-brain-barrier penetration, CYP enzymes, and potential interactions with central nervous system drugs.

What Does Kratom Do?

What does kratom do? Research and reports from users indicate that kratom can produce effects ranging from stimulation to relaxation and sedation.

Some people report:

• Increased alertness
• Increased energy
• Changes in mood
• Relaxation
• Drowsiness
• Opioid-like effects
• Reduced perception of discomfort

These reports should not automatically be interpreted as proof of medical effectiveness.

If you want a more detailed explanation of the range of reported effects, see Canuck Kratom's guide to what kratom does.

Stimulant-like effects

At some exposures, people report kratom stimulant effects, such as increased alertness, energy, and rapid heart rate. These effects are one reason kratom is sometimes compared with caffeine.

But calling kratom a conventional stimulant is an oversimplification.

Sedative and opioid-like effects

At other exposures, people report relaxation, drowsiness, and opioid-like effects. NCCIH similarly describes reports of both stimulant-like effects and opioid- or sedative-like effects.

This apparent contradiction is one of the most important things to understand about kratom: its pharmacological profile is not adequately represented by a single category.

Kratom Benefits: What Does the Evidence Actually Show?

People use kratom for a variety of reasons, which can lead to claims about kratom benefits. Some users report using it for energy, mood, pain, or to manage symptoms associated with opioid withdrawal.

However, reported benefits are not the same as clinically established benefits.

NCCIH states that research on kratom is still in its early stages and that more research is needed to determine its short- and long-term effects, safety, and potential therapeutic uses. It also notes that kratom has not been shown to be safe and effective for opioid withdrawal or another medical use.

Therefore, kratom should not be presented as an established treatment or cure.

Kratom Side Effects and Risks

Kratom safety deserves careful attention because “natural” does not mean risk-free.

Reported kratom side effects include:

• Nausea
• Constipation
• Dizziness
• Drowsiness
• Sweating
• Dry mouth
• Increased heart rate
• Vomiting
• Loss of appetite

NCCIH also identifies less common but potentially serious effects, including seizures, high blood pressure, and liver problems.

Liver injury

Liver injury has been reported in association with kratom use. The available evidence does not establish that every case is caused solely by kratom, and individual products or combinations with other substances can complicate the picture.

Nevertheless, liver toxicity is an important safety concern identified by U.S. health authorities.

Seizures and other serious adverse effects

Serious adverse effects, including seizures, have been reported. The risk may be influenced by product composition, individual factors, and especially use alongside other substances.

Severe symptoms such as seizures, loss of consciousness, severe confusion, difficulty breathing, or other signs of poisoning require urgent medical evaluation.

Respiratory depression

Respiratory depression is particularly important to discuss carefully.

Kratom's opioid-receptor activity means respiratory effects are a legitimate area of concern, especially with concentrated products or combinations with other substances. Recent CDC surveillance found that multiple-substance kratom exposures were associated with more severe outcomes, and the CDC highlighted potential risks from combining kratom with alcohol, opioids, benzodiazepines, stimulants, and antidepressants.

This does not mean every person who uses kratom will experience respiratory depression. Risk varies with the substance, product, amount, combinations, and individual circumstances.

Can Kratom Cause Dependence, Tolerance, or Addiction?

Yes, kratom dependence is possible.

Regular use can lead some people to experience tolerance, meaning that the same exposure may produce a different effect over time. Some regular users also report withdrawal symptoms after stopping.

Reported kratom withdrawal symptoms can include physical and psychological symptoms, although severity and duration vary.

Kratom addiction and kratom use disorder

The terms kratom addiction and kratom use disorder should not be treated as interchangeable with ordinary use.

Dependence refers to physiological adaptation that can produce withdrawal when use stops. Addiction involves a broader pattern of compulsive use, impaired control, continued use despite harm, and other features.

DEA materials state that kratom consumption can lead to addiction, while NCCIH notes that regular users may experience withdrawal after stopping.

Research is still developing regarding how frequently clinically significant kratom use disorder occurs and which factors increase risk.

Kratom Interactions: Why Combining Substances Matters

One of the major uncertainties surrounding kratom interactions is that human research does not yet fully characterize every possible interaction.

Kratom may interact with medications through pharmacological and metabolic pathways. NCCIH notes that kratom can interact with medications and recommends discussing potential supplement-drug interactions with a healthcare professional.

Particular caution is warranted when people combine kratom with substances that affect the central nervous system.

Kratom and alcohol

Combining kratom and alcohol may increase concerns about sedation and other adverse effects. The evidence does not support assuming that the combination is safe.

Kratom and medications

The phrase kratom and medications covers a very broad range of possible combinations. Prescription drugs, over-the-counter medicines, and other psychoactive substances can have different interaction profiles.

Anyone taking medications should discuss kratom use with a doctor or pharmacist rather than assuming an herbal substance cannot interact with medicines.

Kratom Overdose and Toxicity

The terms kratom overdose and kratom toxicity require context.

NCCIH states that fatal overdose from kratom alone appears to be extremely rare, while combinations with other drugs have been associated with deaths and serious adverse effects.

More recent CDC surveillance also shows that kratom-related poison-center reports increased substantially between 2015 and 2025, with multiple-substance exposures frequently associated with more severe outcomes.

Product potency and composition are important considerations. A traditional leaf product is not necessarily pharmacologically equivalent to a highly concentrated extract or an enhanced alkaloid product.

For this reason, there is no universally safe kratom dosage that can be applied to everyone or every product, and readers should not treat a generic dosage figure as medical guidance.

If poisoning is suspected, contact an appropriate poison control service or emergency medical service. In the United States, Poison Help can be reached at 1-800-222-1222; someone who is unresponsive or having a life-threatening reaction requires emergency medical attention.

Kratom Products and Product Variability

Kratom products differ substantially in preparation and concentration.

Common forms include:

• Kratom powder
• Kratom capsules
• Kratom tea
• Kratom extracts
• Dried kratom leaves

Extracts can contain more concentrated quantities of alkaloids than ordinary plant material. That distinction matters when considering potential toxicity and pharmacological effects.

There are also commercially marketed kratom strains, often identified using names associated with red vein kratom, green vein kratom, and white vein kratom.

These labels are widely used in the marketplace, but they should not be interpreted as standardized medical classifications. The chemical composition and effects of products can vary, and more rigorous research is needed to determine how reliably color or strain labels predict pharmacological properties.

For readers researching commercially available forms rather than medical treatment, Canuck Kratom provides separate informational product categories for green vein kratom, red vein kratom, and white vein kratom.

Kratom vs Opioids

Is kratom an opioid?

The most accurate answer is not in the same sense as conventional opioid drugs, but some kratom alkaloids interact with opioid receptors and can produce opioid-like effects.

Mitragynine and 7-hydroxymitragynine interact with opioid receptors, including mu-opioid receptors. However, kratom is a botanical substance with a complex mixture of alkaloids rather than a conventional pharmaceutical opioid such as morphine or oxycodone.

That distinction matters because receptor activity and legal classification are separate concepts.

Kratom vs Stimulants

Kratom can produce stimulant-like effects, including increased alertness and energy, particularly in some patterns of use. That does not make it equivalent to conventional stimulants.

Its interaction with opioid receptors and other systems means kratom has a more complicated pharmacological profile than substances that are conventionally categorized as stimulants.

Kratom vs Coffee and Caffeine

Kratom is sometimes compared with coffee because both can be associated with alertness and energy.

The similarity ends there.

Coffee's primary psychoactive compound is caffeine, which mainly acts by blocking adenosine receptors. Kratom contains multiple pharmacologically active alkaloids, including mitragynine and 7-hydroxymitragynine, that interact with different receptor systems.

Therefore, kratom should not be considered simply “strong coffee” or a botanical form of caffeine.

Kratom vs Kava and CBD

Kava, CBD, and kratom are separate substances with different active compounds and biological mechanisms.

Kava comes from Piper methysticum and contains kavalactones. CBD is a cannabinoid found in cannabis and hemp. Kratom comes from Mitragyna speciosa and contains numerous alkaloids.

Their evidence bases, safety concerns, drug interactions, and legal frameworks also differ. Treating all three as interchangeable “natural alternatives” would therefore be scientifically inaccurate.

Is Kratom FDA Approved?

In the United States, kratom is not FDA-approved as a medical treatment.

The FDA states that there are no legally marketed prescription or over-the-counter drug products containing kratom or its known alkaloids, and it has not approved kratom as safe and effective for any medical purpose.

This does not mean researchers cannot study kratom. Scientific research into kratom pharmacology, safety, dependence, and possible therapeutic applications continues.

It does mean that consumers should be skeptical of claims that kratom is an FDA-approved treatment for pain, anxiety, opioid withdrawal, or another medical condition.

Kratom Legality and Legal Status

Kratom legality is jurisdiction-specific.

In the United States, DEA materials have stated that kratom is not controlled under the federal Controlled Substances Act, although individual states and local jurisdictions may impose their own restrictions.

The legal picture has become more complicated because of concentrated 7-OH products.

In July 2026, the DEA announced its intent to temporarily place 7-hydroxymitragynine above a specified threshold, along with three related substances, into Schedule I under the Controlled Substances Act. The DEA explicitly stated that the action targets concentrated and synthetic 7-OH products and does not apply to botanical kratom products containing naturally occurring 7-OH below the specified threshold.

The FDA has likewise distinguished concentrated or enhanced 7-OH products from naturally occurring trace amounts in kratom leaf and has taken enforcement action concerning products marketed with added or enhanced 7-OH.

Because laws and regulatory actions can change, readers should verify current kratom legal status, including state, provincial, national, and local rules, before possessing, selling, importing, or using kratom.

What Does Scientific Research Say About Kratom?

The overall scientific picture is still developing.

Researchers are investigating:

• Kratom pharmacology
• Mitragynine and 7-OH
• Receptor activity
• Metabolism
• Dependence and withdrawal
• Drug interactions
• Toxicity
• Long-term effects
• Potential therapeutic applications

NCCIH describes kratom research as being in its early stages and emphasizes that much remains unknown about its short- and long-term effects and potential medical uses.

The World Health Organization (WHO) has also reviewed kratom, mitragynine, and 7-hydroxymitragynine through its Expert Committee on Drug Dependence. WHO's review has included continued surveillance of these substances rather than treating the evidence as settled.

This is why evidence-based kratom information should acknowledge both what is known and what remains uncertain.

What Is the Bottom Line About Kratom?

Kratom is a psychoactive botanical substance derived from Mitragyna speciosa. Its leaves contain pharmacologically active alkaloids, especially mitragynine and 7-hydroxymitragynine, which interact with opioid receptors and other biological systems.

It is not accurate to describe kratom simply as an opioid, stimulant, or sedative. Depending on the product and circumstances, it can produce stimulant-like, sedative, and opioid-like effects.

Kratom can also cause side effects and may lead to tolerance, dependence, and withdrawal in some regular users. Product variability, concentrated extracts, contamination, and combinations with other substances are important safety considerations.

Most importantly, pharmacological classification and legal classification are not the same thing. A substance can be pharmacologically active without being federally controlled, while specific concentrated derivatives or formulations can be subject to separate regulatory rules.

For anyone researching kratom, the most reliable approach is to distinguish traditional use from modern commercial products, anecdotal reports from clinical evidence, and scientific classification from legal status.

Frequently Asked Questions About Kratom

Is kratom a drug?

Yes, in the broad pharmacological sense, kratom is a psychoactive botanical substance containing chemicals that produce biological effects. However, “drug” does not automatically mean “controlled substance.”

What is kratom used for?

People report using kratom for purposes including energy, alertness, mood, pain, and attempts to manage opioid withdrawal symptoms. These reported uses do not establish that kratom is a proven or FDA-approved treatment.

Is kratom an opioid?

Kratom is not simply the same thing as a conventional opioid. However, its major alkaloids can interact with opioid receptors and produce opioid-like effects.

Is kratom a stimulant?

Kratom can produce stimulant-like effects such as increased alertness and energy, but its pharmacology is more complicated than that of a conventional stimulant.

Is kratom psychoactive?

Yes. Kratom contains compounds capable of affecting the brain and producing changes in alertness, mood, sedation, and other subjective effects.

Is kratom addictive?

Kratom has dependence and addiction potential. Regular users can experience withdrawal, and some people develop problematic patterns of use.

Is kratom safe?

It cannot accurately be described as universally safe. Reported risks include nausea, constipation, dizziness, drowsiness, seizures, liver problems, dependence, interactions, and product contamination. Risk can vary substantially according to the product and whether other substances are involved.

Is kratom FDA approved?

No. The FDA has not approved kratom as a safe and effective medical treatment.

Is kratom legal?

Its legal status depends on the jurisdiction and the specific product. In the United States, natural kratom has not been federally listed as a controlled substance under the Controlled Substances Act, while states and local governments may impose restrictions. Federal authorities have separately taken action concerning concentrated and synthetic 7-OH products.

Where can I find reliable information about kratom?

For medical and scientific questions, prioritize sources such as NCCIH, FDA, DEA, CDC, NIDA, Poison Control, WHO, and peer-reviewed scientific literature. These sources are more appropriate for evaluating kratom risks, pharmacology, dependence, interactions, and regulation than commercial marketing claims.