1. A naturally occurring alkaloid compound found in the leaves of the kratom plant (Mitragyna speciosa), used in traditional medicine and as a recreational substance.
Usage: chemistry/pharmacology term; often discussed in contexts of herbal medicine and drug policy

Examples

• Mitragynine is the primary active alkaloid in kratom leaves.
• Researchers have studied mitragynine for its potential analgesic properties.
• The concentration of mitragynine varies depending on the kratom plant's origin and growing conditions.
• Some countries have restricted or banned mitragynine due to regulatory concerns.
• Mitragynine interacts with opioid receptors in the brain, which explains some of its effects.