Statement from FDA Commissioner Scott Gottlieb, M.D., on new warning letters FDA is issuing to companies marketing kratom with unproven medical claims; and the agency’s ongoing concerns about kratom

Epidemics don’t occur overnight. As we deal with the devastating crisis of opioid abuse and overdose plaguing our nation, the U.S. Food and Drug Administration must remain vigilant and aggressive against trends that threaten to reverse our progress, or substances that have the potential to cause new epidemics of abuse.

Mitragyna speciosa, known more commonly as kratom, is a plant native to Thailand, Malaysia, Indonesia and Papua New Guinea. While it is important to generate more evidence, there is evidence that certain substances found in kratom are opioids and data suggest that one or more may have a potential for abuse. And its use has been on the rise and is of concern to the FDA. We’re not alone in our concern about the opioids found in kratom – it’s already illegal or controlled in several other countries including Australia, Denmark, Germany, Malaysia and Thailand. The substance is also banned in a number of states and municipalities in the U.S.

Science and evidence matter in demonstrating medical benefit, especially when a product is being marketed to treat serious diseases like opioid use disorder (OUD). However, to date, there have been no adequate and well-controlled scientific studies involving the use of kratom as a treatment for opioid use withdrawal or other diseases in humans. Nor have there been studies on how kratom, when combined with other substances, may impact the body, its dangers, potential side effects, or interactions with other drugs. Today’s action is based on these concerns. The FDA issued warning letters to two more unscrupulous vendors, Chillin Mix Kratom and Mitra Distributing, for marketing kratom products with scientifically unsubstantiated claims including to “relieve opium withdrawals” and to “treat a myriad of ailments including but not limited to: diarrhea, depression, diabetes, obesity, high blood pressure, stomach parasites, diverticulitis, anxiety, alcoholism, and opiate withdrawal.” Simply, selling these unapproved kratom products with claims that they can treat opioid withdrawal and addiction and other serious medical conditions is a violation of federal law.

Yet despite our warnings and previous regulatory and enforcement actions, we continue to find marketers actively selling kratom with unsubstantiated claims.

Fraudulent health claims can pose serious health risks. They may keep some patients from seeking appropriate, FDA-approved therapies. Reliance on products with unsubstantiated claims may delay those who suffer from OUD from entering recovery and may put them at greater risk of overdose and death. We know that patients receiving FDA-approved medication-assisted treatment (MAT) cut their risk of death in half, according to the Substance Abuse and Mental Health Services Administration.

For more information, please visit: Statement from FDA Commissioner Scott Gottlieb on kratom.