Research · 2026-08-01
Cleveland Clinic Journal Reviews Kratom Evidence Gap as 7-OH Products Proliferate
Source: Cleveland Clinic Journal of Medicine
Why it matters
The Cleveland Clinic Journal of Medicine reaching a broad clinical audience with a kratom review matters because most practicing physicians still have limited training on kratom use disorders. This paper gives primary care and emergency clinicians a current framework for identifying and managing patients just as federal scheduling drives more users toward the healthcare system.
The big picture
Research on kratom has historically lagged far behind its adoption. Kratom use in the US has grown sharply over the past decade, but most published guidance dates from studies of traditional leaf preparations -- not the engineered 7-OH concentrates now flooding the consumer market. This review, published in a journal read by general internists and hospitalists, specifically addresses the divergence between natural kratom and synthetically boosted 7-OH products, and calls on clinicians to screen for kratom use and assess drug interactions and addiction risk.
Key findings
- Kratom use in the US has increased significantly, driven by self-management of pain, mood symptoms, and opioid withdrawal
- Dose-dependent effects range from stimulant-like at low doses to opioid-like at higher doses via partial mu-opioid receptor agonism
- Engineered products with high 7-OH concentrations are now common in the US market and differ substantially from traditional leaf preparations
- High-concentration 7-OH products carry greater risks of toxicity, dependence, and withdrawal than natural kratom leaf
- The authors call on clinicians to routinely assess kratom users for adverse effects, drug interactions, and addiction markers
What they say
The authors wrote: 'Clinicians should remain informed about kratom products and assess users for adverse effects, potential drug interactions, and addiction.' They note that engineered 7-OH preparations 'differ substantially from traditional leaf preparations and are associated with greater risks of toxicity, dependence, and withdrawal.'
Bottom line
Every clinician seeing patients with substance use disorders now needs a working understanding of 7-OH -- and this Cleveland Clinic review is the clearest starting point for the medical community.