rhynchophylline
Sign in to saveRhynchophylline is an alkaloid found in certain Uncaria species (Rubiaceae), notably Uncaria rhynchophylla and Uncaria tomentosa. It also occurs in the leaves of Mitragyna speciosa (kratom) and Mitragyna tubulosa, a tree native to Thailand. Chemically, it is related to the alkaloid mitragynine.
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Rhynchophylline is an alkaloid found in certain Uncaria species (Rubiaceae), notably Uncaria rhynchophylla and Uncaria tomentosa. It also occurs in the leaves of Mitragyna speciosa (kratom) and Mitragyna tubulosa, a tree native to Thailand. Chemically, it is related to the alkaloid mitragynine.
Rhynchophylline is a non-competitive NMDA antagonist (IC50 = 43.2 μM) and a calcium channel blocker.
Excerpted from Wikipedia’s “rhynchophylline” article, available under the CC BY-SA 4.0 licence.