What Is Kratom and Why Do Employers Test for It?

What Is Kratom?

Kratom is a natural substance derived from the leaves of the Mitragyna speciosa tree, which is native to Southeast Asia. Traditionally, kratom leaves were chewed or brewed into tea for their stimulant or pain-relieving effects, depending on the dose.

In the United States, kratom is commonly sold as powders, capsules, extracts, or beverages. It is often marketed as a natural supplement, though it is not approved by the FDA for medical use. The primary active compounds in kratom—mitragynine and 7-hydroxymitragynine—interact with opioid receptors in the brain, producing effects that vary based on dosage.

At lower doses, kratom may act as a stimulant, increasing alertness and energy. At higher doses, it can produce sedative or opioid-like effects, including relaxation and pain relief. This variability is one reason kratom presents unique challenges in workplace safety and drug testing contexts.

How Kratom Affects the Body

Kratom's effects depend on dosage, frequency of use, and individual response. Because its active compounds interact with opioid receptors, kratom can affect the central nervous system in ways that may impair judgment, coordination, and reaction time.

Reported effects of kratom use may include increased energy, altered perception, drowsiness, nausea, dizziness, and impaired motor function. With repeated or high-dose use, kratom has also been associated with dependency, withdrawal symptoms, and adverse health effects.

From an employer's perspective, the concern is not legality or intent, but functional impairment. Even substances perceived as "natural" can compromise an employee's ability to perform safety-sensitive tasks, especially in environments involving heavy machinery, driving, patient care, or physical labor.

Is Kratom Legal in the United States?

Kratom's legal status is complex and varies by jurisdiction. At the federal level, kratom is not classified as a controlled substance. However, the FDA has issued warnings about its safety, and the DEA has identified kratom as a substance of concern.

At the state and local level, kratom may be legal, restricted, or banned entirely. Several states and municipalities prohibit its sale or use, while others allow it with varying degrees of regulation.

For employers, legality does not determine whether kratom may be addressed in a workplace drug testing program. Employers are generally permitted to prohibit substances that pose safety risks or impair job performance, even if those substances are legal under state law.

Why Kratom Raises Workplace Safety Concerns

Kratom presents several challenges for employers responsible for maintaining safe workplaces. Because its effects can range from stimulant-like to sedative, employees may not recognize or may underestimate the impact kratom has on their ability to work safely.

Additional concerns include inconsistent potency between products, lack of standardized dosing, and the potential for delayed or prolonged effects. In safety-sensitive roles, even subtle impairment can increase the risk of accidents, errors, or injuries.

For employers, kratom use may also complicate post-incident investigations, workers' compensation claims, and liability assessments if impairment is suspected but not addressed through policy or testing.

Can Kratom Be Detected on a Drug Test?

Kratom is not detected on standard workplace drug testing panels, such as the commonly used 5 panel or 10 panel drug tests. This is because kratom's primary active compounds—mitragynine and 7-hydroxymitragynine—are chemically distinct from opioids and other substances typically included in traditional screening panels.

As a result, an employee may test negative on a standard drug test even if kratom use has occurred. This limitation has contributed to increased employer interest in kratom-specific testing, particularly in safety-sensitive or high-risk environments where recent substance use may impact performance.

For employers, understanding that kratom requires specialized testing is essential. Without a kratom-specific test, its use is unlikely to be identified through routine drug screening.

What Type of Drug Tests Detect Kratom?

Kratom can be detected through expanded or specialized drug testing panels designed to identify mitragynine and related compounds. These tests are not included by default and must be specifically requested as part of a customized testing program.

Detection methods may include urine, oral fluid (saliva), or blood testing, depending on the testing provider and the context of the test. Urine testing is the most commonly used method for kratom detection due to its practicality and established laboratory procedures.

Because kratom testing is not standardized across all laboratories, employers should work with experienced drug testing providers to ensure appropriate panel selection, detection thresholds, and result interpretation.

Why Employers Choose to Test for Kratom

Employers who test for kratom typically do so to address emerging workplace safety risks rather than regulatory mandates. As awareness of kratom use increases, employers are recognizing the potential impact it may have on judgment, alertness, and physical coordination.

Testing for kratom may also support consistent policy enforcement. When employers prohibit substances that impair performance, regardless of legality, testing provides an objective way to reinforce expectations and respond to incidents.

Additionally, kratom testing may be incorporated following workplace incidents, near misses, or patterns of concerning behavior, helping employers document due diligence and support defensible decision-making.

Industries Where Kratom Testing Is Most Relevant

Kratom testing is most commonly considered in industries where impairment poses a direct risk to employee safety, public safety, or operational integrity.

In construction, manufacturing, and industrial settings, even minor impairment can increase the likelihood of accidents involving machinery, tools, or elevated work environments.

Transportation and logistics employers may also evaluate kratom testing when employees operate vehicles, forklifts, or other mobile equipment where reaction time and alertness are critical.

In healthcare, senior care, and behavioral health environments, employers may consider kratom testing to help ensure patient safety, especially in roles involving medication management or direct care.

Warehousing and distribution centers, as well as energy and utility operations, may also identify kratom as a relevant concern due to the physical and safety-sensitive nature of the work.

Policy Considerations for Kratom Testing

Employers considering kratom testing should address it clearly within their written workplace drug testing policy. Policies should specify whether kratom is prohibited, under what circumstances testing may occur, and how results will be handled.

Clear communication, consistent application, and regular policy review help ensure kratom testing is implemented fairly and defensibly as part of a broader workplace drug testing program.

Navigating State Law Conflicts and Workplace Kratom Policies

One of the primary challenges employers face when addressing kratom use is the variation in state and local laws. While kratom is legal in many jurisdictions, it is restricted or prohibited in others. This legal patchwork can create uncertainty for employers operating across multiple states or regions.

When state law permits kratom use, employers are still generally allowed to enforce workplace policies that prohibit substances capable of impairing job performance or compromising safety. Workplace drug testing policies are not required to mirror state legality; instead, they should focus on maintaining a safe, productive work environment. Courts and regulatory agencies typically recognize an employer's right to restrict substance use, legal or not, when it poses a legitimate safety or operational concern.

However, employers must apply such policies consistently and carefully. Policies should clearly state that the organization prohibits substances that may impair performance, regardless of their legal status under state law. This approach helps reduce confusion and strengthens defensibility if policy enforcement is challenged.

For employers operating in multiple states, consistency is key. Maintaining a uniform, impairment-focused policy, rather than a legality-based one, helps simplify compliance and avoid unequal treatment of employees in different jurisdictions. At the same time, employers should remain aware of state-specific employment and privacy laws that may affect how testing is conducted or how results are handled.

Because laws and regulations surrounding kratom continue to evolve, employers should review their drug testing policies regularly and consult legal counsel when implementing or expanding kratom testing. A proactive, well-documented approach helps balance legal compliance with workplace safety obligations.

Key Takeaways for Employers

Kratom represents a growing workplace consideration due to its variable effects, inconsistent regulation, and potential impact on safety-sensitive job performance. While kratom is not included in standard drug testing panels, employers can address related risks through expanded testing options and clear workplace policies.

Testing for kratom is most relevant in environments where impairment, regardless of legality, poses a direct safety or liability concern. When implemented thoughtfully, kratom testing supports consistent policy enforcement, incident response, and risk management efforts.

By staying informed about emerging substances and working with experienced testing providers, employers can adapt their workplace drug testing programs to evolving risks while maintaining safe, productive work environments.