Bottom Line Up Front: 7-Hydroxymitragynine (7OH) is a highly potent alkaloid found in kratom that acts primarily on opioid receptors in the brain. While naturally occurring in trace amounts, concentrated 7OH products carry significant risks including rapid tolerance development, physical dependence, and challenging withdrawal symptoms that can last weeks to months.
What is 7OH?
7-Hydroxymitragynine (7OH) is a terpenoid indole alkaloid present in the plant Mitragyna speciosa, commonly known as kratom. It was first described in 1994 and in humans, it is produced as an active metabolite of mitragynine via hepatic oxidation. While 7OH is naturally present in small amounts from 0.6%–0.7% on average in kratom leaves, modern extraction techniques have made it possible to create highly concentrated products.
7OH is formed when mitragynine (kratom’s primary alkaloid) is metabolized in the liver by cytochrome P450 3A enzymes. This conversion significantly enhances 7OH’s effectiveness as a pain reliever, making it substantially more potent than mitragynine despite being present in kratom leaves at much lower concentrations.
Key Characteristics of 7OH:
Potency: Approximately 13 times more potent than morphine
Receptor Activity: Acts as a partial agonist at μ-opioid receptors and as a competitive antagonist at δ- and κ-opioid receptors
Natural Occurrence: Pure kratom products should contain no more than 2% of 7-hydroxymitragynine in the alkaloid fraction
How Long Does 7OH Last?
Users report the effects of 7-hydroxy lasting anywhere from 3 to 6 hours, with some lingering effects possibly extending to 8 hours in certain individuals. The duration depends on several factors:
Individual metabolism: Body weight, liver function, and genetic factors
Dosage: Higher doses typically last longer
Method of consumption: Oral tablets vs. liquids vs. other forms
Food intake: On an empty stomach, onset occurs in 15 to 20 minutes, while on a full stomach it takes more time
How Long Does 7OH Stay in Your System?
The elimination of 7OH from your system depends on multiple factors including dose, frequency of use, metabolism, and individual physiology. For comprehensive information about kratom detection times and metabolism, visit our detailed guide on how long kratom stays in your system.
What Are 7OH Tablets?
7OH tablets are pre-measured dosage forms containing concentrated 7-hydroxymitragynine, typically ranging from 5mg to 22mg per tablet. These tablets are identifiable by their distinct appearance – often purple or green – marked with manufacturer logos and dosage information.
Common 7OH tablet characteristics:
Purple tablets: Often contain 20-22mg of 7OH
Green tablets: Typically contain 5-10mg of 7OH
Scored design: Many tablets have center notches for splitting
Weight: Approximately 600 milligrams each
What Does 7OH Feel Like?
7OH produces potent analgesic effects, mood enhancement, and sedative properties. Users report pain relief, enhanced relaxation, and euphoric sensations similar to opioids. Personal accounts describe feelings of “calm and peace” and being “totally pain and anxiety free.”
Common effects include:
Significant pain relief
Mood elevation
Relaxation and sedation
Reduced anxiety
Euphoria (at higher doses)
How Long Does 7OH Take to Kick In?
Effects typically kick in within 15-45 minutes for liquid forms, offering a relatively swift experience. For tablets and other solid forms, effects are gradually absorbed through the digestive system, leading to a delayed onset of effects, typically within 1-2 hours.
Onset times by consumption method:
Liquid/drinks: 15-45 minutes
Tablets/capsules: 1-2 hours
Vaping: Nearly immediate
Empty stomach: 15-20 minutes