Kratom: Understanding the Herbal Product with a Complicated Reputation
Kratom, derived from the leaves of the Mitragyna speciosa tree native to Southeast Asia, has gained significant attention in the United States over the past decade. Marketed as a natural remedy for pain, anxiety, and opioid withdrawal, it is also increasingly scrutinized due to safety concerns, rising reports of adverse effects, and the emergence of potent synthetic variants. As interest in kratom grows, so does the need for clear, evidence-based information about its risks, benefits, and regulatory status.
What Is Kratom and How Does It Work?
Kratom contains active compounds called alkaloids, primarily mitragynine and 7-hydroxymitragynine, which interact with opioid receptors in the brain. At low doses, kratom tends to produce stimulant-like effects, such as increased energy and alertness. At higher doses, it can produce sedative and pain-relieving effects similar to opioids, though its mechanism is not identical to traditional opioids like morphine or fentanyl.
Despite its plant-based origin, kratom is not without risk. The U.S. Food and Drug Administration (FDA) has not approved kratom for any medical use, citing concerns about toxicity, potential for dependence, and lack of clinical evidence supporting its safety and efficacy. The agency has issued multiple warnings about kratom-containing products, particularly those adulterated with other substances.
Rising Concerns: Poisonings and Adverse Events
Reports of kratom-related health issues have increased sharply in recent years. According to data from the American Association of Poison Control Centers (AAPCC), kratom exposure cases reported to U.S. Poison centers rose by over 1,000% between 2011 and 2017, with continued increases in subsequent years. Symptoms associated with kratom use include nausea, vomiting, agitation, rapid heart rate, drowsiness, and in severe cases, seizures, respiratory depression, and death.
A 2019 analysis published in the journal Clinical Toxicology found that kratom was implicated in over 1,800 poison control calls in a single year, with poly-substance use—particularly involving opioids, benzodiazepines, or alcohol—increasing the risk of serious outcomes. While some advocates argue that kratom is being unfairly blamed for deaths involving multiple substances, toxicology reports often detect kratom alongside other central nervous system depressants, complicating attribution.
The Emergence of Synthetic Kratom
One of the most troubling developments in recent years is the rise of synthetic kratom products. These are not derived from the Mitragyna speciosa plant but are instead laboratory-made compounds designed to mimic or amplify the effects of natural kratom alkaloids. Some synthetic variants have been found to be significantly more potent than mitragynine, with binding affinities to opioid receptors that exceed those of fentanyl in preclinical studies.
Law enforcement and public health officials have warned that these synthetic products pose a heightened risk of overdose and toxicity due to their unpredictable potency and lack of quality control. In several cases, synthetic kratom has been linked to clusters of severe poisonings and fatalities, prompting alerts from agencies such as the Drug Enforcement Administration (DEA) and the Centers for Disease Control and Prevention (CDC).
Addiction and Withdrawal Potential
Even though kratom is often promoted as a tool to facilitate individuals taper off opioids, evidence suggests it can itself lead to dependence. Regular use may result in tolerance, meaning higher doses are needed to achieve the same effect, and discontinuation can trigger withdrawal symptoms. These may include muscle aches, insomnia, irritability, emotional changes, and cravings—symptoms that resemble, though are often reported as less severe than, opioid withdrawal.
A 2020 survey of kratom users published in Drug and Alcohol Dependence found that while many reported using kratom to manage pain or mood, a significant subset met criteria for substance use disorder based on patterns of compulsive use and difficulty cutting down despite negative consequences.
Regulatory Status and Public Health Response
Kratom is not currently regulated under the federal Controlled Substances Act, though the DEA has listed it as a ". Drug and Chemical of Concern." In 2016, the DEA announced intent to place kratom in Schedule I—the most restrictive category, reserved for substances with high abuse potential and no accepted medical use—but reversed the decision following public outcry and calls for further research.
As of 2024, kratom is banned or restricted in several states, including Alabama, Arkansas, Indiana, Rhode Island, Vermont, and Wisconsin. Some cities and counties have also enacted local bans. Conversely, other jurisdictions have adopted regulatory approaches such as the Kratom Consumer Protection Act (KCPA), which aims to ensure product purity, prohibit adulterants, and set age restrictions while allowing legal access.
The FDA continues to urge consumers to avoid kratom, citing insufficient evidence of benefit and documented risks. The agency has also taken action against companies making unverified health claims about kratom products, issuing warning letters and pursuing seizures of misbranded or adulterated items.
What Consumers Should Know
For individuals considering kratom use, several key points are essential:
- Lack of standardization: Kratom products vary widely in potency and purity. Contamination with salmonella, heavy metals, or other drugs has been documented in multiple FDA investigations.
- Risk of interactions: Kratom may interact dangerously with prescription medications, particularly opioids, benzodiazepines, and certain antidepressants.
- No proven medical benefit: Despite anecdotal reports, there are no large-scale, controlled clinical trials confirming kratom’s safety or efficacy for any medical condition.
- Potential for dependence: Regular use can lead to physical dependence and withdrawal.
- Synthetic variants are especially hazardous: Products labeled as "enhanced" or "ultra-potent" kratom may contain synthetic alkaloids with unpredictable effects.
The Bottom Line
Kratom occupies a complex space in the landscape of psychoactive substances. While some users report benefits for pain, mood, or opioid cessation, the scientific evidence does not yet support its use as a safe or effective therapeutic agent. The rise of synthetic kratom and increasing reports of poisonings underscore the need for caution, better regulation, and further research.
Until more is known, health experts recommend avoiding kratom, particularly in unregulated forms. Individuals struggling with pain, anxiety, or substance use should consult a healthcare provider about evidence-based treatments. For those who choose to use kratom despite the risks, sourcing from reputable vendors who provide third-party testing and avoiding combination with other central nervous system depressants may reduce—but not eliminate—potential harms.
As the debate over kratom continues, balancing access for those who believe it helps them with protection for public health remains a challenge. Ongoing surveillance, transparent reporting, and rigorous science will be essential in shaping sound policy and informed consumer choices.
Frequently Asked Questions
Is kratom legal in the United States? Kratom is legal at the federal level but banned in several states and localities. Its status varies by jurisdiction, so individuals should check local laws.
Can kratom help with opioid withdrawal? Some individuals report using kratom to manage opioid withdrawal symptoms, but there is no clinical evidence proving its safety or effectiveness for this purpose. Medical supervision and FDA-approved treatments like buprenorphine or methadone are recommended.
What are the signs of kratom overdose? Symptoms may include extreme drowsiness, confusion, slowed or difficult breathing, seizures, and loss of consciousness. Immediate medical attention is required if overdose is suspected.
Are there safe ways to use kratom? No use of kratom is considered completely safe due to lack of regulation, potential for contamination, and risk of dependence. Avoiding synthetic products, not combining with other substances, and starting with very low doses may reduce risk but do not eliminate it.
Is kratom detectable on drug tests? Standard opioid tests do not typically detect kratom, but specialized tests can identify mitragynine and its metabolites. Some employers or clinics may include kratom in expanded screening panels.