7-hydroxymitragynine, often called 7-OH, is a potent opioid-active compound associated with the kratom plant, but concentrated 7-OH products are not the same as natural kratom leaf. FDA states that 7-OH occurs naturally only in trace amounts in kratom, while products sold as tablets, gummies, shots, or drink mixes may contain added or enhanced levels.
FDA has warned that concentrated 7-OH products can cause serious harm and are not approved for any medical use.
What is 7-hydroxymitragynine?
7-OH is an alkaloid that can bind to opioid receptors. It is chemically related to mitragynine, the main alkaloid in kratom, but it is much more potent at certain opioid receptors.
How is 7-OH different from kratom leaf?
Natural kratom leaf contains many compounds, with mitragynine usually present in much larger amounts than 7-OH. FDA emphasizes that 7-OH naturally occurs only in trace amounts in kratom. Concentrated 7-OH products can contain levels far beyond those found in traditional leaf material.
That difference matters because a product marketed as “kratom” may actually deliver a much more opioid-like exposure when 7-OH has been concentrated or added.
Why is FDA concerned about 7-OH products?
FDA describes concentrated 7-OH products as novel potent opioid products and warns that they have not been shown to be safe or effective for any medical use. The agency has taken enforcement actions against companies marketing concentrated 7-OH products as supplements or foods.
Can 7-OH cause dependence or withdrawal?
Because 7-OH has strong opioid-receptor activity, repeated use can plausibly lead to tolerance, physical dependence, and withdrawal. FDA specifically highlights abuse and dependence concerns with concentrated products.
Is 7-OH approved as a medication?
No. FDA states that there are no FDA-approved drugs containing 7-OH. It is also not lawful as a dietary supplement ingredient or conventional food additive under current federal standards.
Is 7-OH the same as mitragynine?
No. They are different alkaloids. Mitragynine is the primary naturally occurring alkaloid in kratom leaf, while 7-OH is present in much smaller natural amounts and has stronger opioid-receptor activity.
What should someone do if they are using concentrated 7-OH products regularly?
Do not assume that a gas-station, smoke-shop, or online product is harmless simply because it is sold over the counter. A clinician can assess the pattern of use, withdrawal risk, other substances, medical history, and whether supervised treatment is appropriate.
Trinity Behavioral Health provides information about adult detox and withdrawal management and residential addiction treatment. Treatment recommendations require individualized assessment.
Frequently asked questions
Is 7-OH just another name for kratom?
No. 7-OH is one specific opioid-active compound associated with kratom, while kratom leaf contains many alkaloids and naturally has only trace amounts of 7-OH.
Are concentrated 7-OH products FDA-approved?
No. FDA has not approved 7-OH for any medical use.
Can 7-OH act like an opioid?
Yes. FDA and pharmacologic research describe 7-OH as having potent opioid-receptor activity.
Is FDA targeting natural kratom leaf in the same way as concentrated 7-OH?
FDA has specifically distinguished concentrated or added 7-OH products from natural kratom leaf in its recent enforcement and public-health messaging.
Sources
- FDA: Products Containing 7-OH Can Cause Serious Harm
- FDA: Hiding in Plain Sight—7-OH Products
- FDA: Warning Letters on 7-Hydroxymitragynine Products
This article is general educational information and does not replace individualized medical advice.