Is It Illegal to Drive After Taking Kratom? Impairment, DUI Laws, and Driving Risks

 Question:

Can you get a DUI for taking kratom in Washington State?

Answer: 

Taking kratom doesn’t automatically make driving illegal in Washington, but the state’s DUI law, RCW 46.61.502, prohibits driving while under the influence of or affected by any drug, legal or not. While Washington’s Pharmacy Quality Assurance Commission withdrew a 2025 proposal to schedule kratom, its legal status doesn’t determine whether it’s safe to drive after use. Kratom’s alkaloids, mitragynine and 7-hydroxymitragynine, can cause drowsiness, dizziness, confusion, and reduced coordination, effects that vary by dose, product concentration, and individual factors. Because there’s no kratom-specific impairment threshold, no waiting period guarantees safety. Concentrated products like kratom shots or 7OH extracts can be especially unpredictable. Combining kratom with alcohol or other sedating substances increases risk further. Anyone who feels affected by kratom should arrange alternative transportation rather than drive, and those noticing patterns of dependence should consider reaching out to a treatment provider like Puget Sound Recovery Centers for support.

If you’ve taken kratom and you’re wondering whether it’s safe—or legal—to drive, you’re asking a more complicated question than it might seem. Two separate issues are at play here: whether kratom itself is legal, and whether kratom can impair someone enough that driving becomes unsafe or against the law.

These aren’t the same question, and confusing them can lead to real consequences. Many people assume that if a substance is legal to purchase—at a gas station, smoke shop, or online—it must be safe to use before driving. That assumption doesn’t hold up under Washington law. Washington’s DUI statute doesn’t ask whether a drug is legal. It asks whether a driver is affected by it. This distinction matters for anyone in the Puget Sound area who uses kratom, whether occasionally or regularly, and wants to understand the real risks involved.

Is Kratom Legal?

Is Kratom Legal Under Federal Law?

At the federal level, the Drug Enforcement Administration (DEA) has not classified kratom as a controlled substance under the Controlled Substances Act. The DEA notes that kratom’s two major psychoactive ingredients are mitragynine and 7-hydroxymitragynine, commonly referred to as 7OH kratom in the marketplace (DEA). That said, the DEA also acknowledges that state and local regulations vary, so a product’s federal status doesn’t guarantee it’s treated the same way everywhere.

It’s also worth distinguishing between traditional kratom leaf products—like kratom pills or raw leaf powder—and newer, more concentrated or synthetic/semi-synthetic alkaloid products, including certain 7OH kratom extracts and formulations like Opia kratom. These concentrated products often contain significantly higher levels of active alkaloids than traditional leaf, which matters when it comes to potential effects. The U.S. Food and Drug Administration (FDA) has warned that 7-hydroxymitragynine demonstrates substantially greater mu-opioid receptor potency than mitragynine and other classical opioids (FDA). The FDA has also cautioned consumers against using kratom altogether, citing risks such as liver toxicity, seizures, and substance use disorder, and notes that kratom is not lawfully marketed in the U.S. as a drug, dietary supplement, or food additive (FDA).

Regulations surrounding kratom and its specific alkaloids continue to evolve, both federally and at the state level, so what’s accurate today may shift.

Is Kratom Legal in Washington State?

Washington has, at times, considered restricting kratom more heavily. The state’s Pharmacy Quality Assurance Commission had proposed rulemaking to add kratom to Schedule I, but the Commission withdrew that proposal on March 5, 2025, after determining that kratom and its active alkaloids did not meet the state’s tests for Schedule I placement under RCW 69.50.201 and RCW 69.50.203 (Washington State Register, WSR 25-06-091).

Writer’s note: Kratom regulation is an active and evolving area of state policy. Please verify Washington’s current rules immediately before publishing, as classifications and restrictions can change.

Is It Illegal to Drive After Taking Kratom in Washington?

Taking kratom and then driving isn’t automatically a DUI based solely on the fact that you consumed kratom. But Washington law doesn’t stop at illegal substances. RCW 46.61.502 makes it a crime to drive while under the influence of or affected by any drug, a category broad enough to include legal, over-the-counter, and prescription substances alongside illicit ones.

This is where the distinction between legality of possession and legality of impaired driving becomes so important. Just because you can legally buy and use kratom doesn’t mean you’re protected from a DUI charge if it affects your ability to drive safely. Even a valid prescription for a controlled substance isn’t necessarily a defense to a DUI charge in Washington—what matters is impairment, not the legal status of what caused it.

Unlike alcohol, which has a defined blood alcohol concentration (BAC) limit, or THC, which has its own numerical threshold, Washington’s DUI statute doesn’t establish a kratom-specific impairment cutoff. That absence of a number can be misleading. It doesn’t mean there’s a safe amount of kratom to consume before driving—it means there’s no simple test to fall back on, which puts more responsibility on individual judgment.

Can You Get a DUI From a Legal Drug?

Yes. Washington DUI law isn’t limited to illegal drugs. Consider common examples: many people know that certain sedating prescription medications, or even over-the-counter allergy and sleep aids, can impair driving ability despite being entirely legal to use. The same principle applies to kratom. What matters under the law is whether a substance affects your ability to drive—not whether you obtained it legally.

Washington’s Department of Licensing (DOL) warns that drivers cannot safely operate a vehicle after using impairing drugs, regardless of legal status, and outlines a range of consequences for doing so, including license suspension, fines, criminal penalties, potential jail time, and increased insurance costs (Washington State Department of Licensing).

Does Kratom Impair Your Ability to Drive?

Kratom Can Produce Different Effects at Different Doses

Kratom’s effects come largely from its active alkaloids, primarily mitragynine and 7-hydroxymitragynine. Users and manufacturers often describe kratom as having stimulant-like effects at lower doses and more sedating, opioid-like effects at higher doses. This dose-dependent variability is part of what makes kratom’s impact on driving so unpredictable.

Kratom doesn’t affect everyone the same way. Product concentration, the specific dose taken, individual tolerance, metabolism, and whether kratom is combined with other substances can all shape how a person responds. Someone who has used kratom regularly for months may react very differently than someone trying it for the first time, and a kratom vape or kratom shot may hit differently than a slower-acting capsule.

Kratom Side Effects That Could Make Driving Dangerous

Several reported kratom side effects are directly relevant to safe driving, including:

• Drowsiness or sedation
• Dizziness
• Confusion
• Reduced coordination
• Changes in alertness
• Nausea
• Changes in attention or concentration

Each of these effects connects to a specific driving task. Drowsiness and reduced alertness can affect a driver’s ability to maintain a lane or notice a light change in time. Dizziness and reduced coordination can interfere with steering and braking precision. Confusion and concentration changes can slow a driver’s ability to judge distance, monitor pedestrians, or respond appropriately to sudden hazards like a car stopping short or a cyclist entering the roadway.

Does Kratom Slow Your Reaction Time?

Reaction time is one of the most critical factors in safe driving—it’s the difference between avoiding a collision and being involved in one. Unfortunately, research specifically measuring kratom’s effects on real-world driving performance remains limited. Because of this gap, it’s not possible to state a precise reaction-time reduction associated with kratom use, and any claim that does so should be treated with skepticism.

What’s important to understand is this: the absence of a kratom-specific BAC-style cutoff does not mean someone is safe to drive. It simply means science and law haven’t caught up with the substance’s growing use. A lack of a legal number is not the same as a lack of risk.

How Long After Taking Kratom Is It Safe to Drive?

There isn’t a scientifically established universal number of hours after which everyone is safe to drive following kratom use. Several factors influence how long effects may last, including:

• The amount consumed
• The product’s strength and formulation
• Whether it’s traditional leaf or a concentrated extract
• Individual metabolism
• Frequency of kratom use
• Other medications or substances in a person’s system

Because these variables differ so much from person to person, no responsible source should tell you to “wait X hours and you’re safe.” The more practical guidance is to pay attention to how you feel. If you feel sedated, dizzy, confused, unusually stimulated, uncoordinated, or otherwise affected in any way, that’s a sign you shouldn’t get behind the wheel, regardless of how much time has passed.

Kratom Shots and Extracts May Be Especially Difficult to Judge

Traditional kratom leaf, typically found in powders or pills, differs meaningfully from newer concentrated extracts like kratom shots or high-potency formulations. A small bottle of a kratom shot doesn’t necessarily mean a small amount of active alkaloids. In fact, some concentrated extracts pack far more potency into a smaller serving than their size suggests.

Concentrations can vary widely between products and brands, and labeling isn’t always consistent or easy to interpret. This means consumers shouldn’t assume that one “shot,” capsule, or serving will produce a predictable level of impairment, especially if they’re switching between products or trying something new. This variability is part of why there isn’t a simple kratom equivalent to a BAC chart. Without standardized potency, there’s no reliable way to calculate impairment from dose alone.