Mitragynine is the most abundant alkaloid in kratom. Kratom contains about 40 alkaloids that we know of. All of the alkaloids combined make up only 0.5-1.5% of the total leaf material. Estimates of percentage of mitragynine in alkaloids range from 12% in Malaysian kratom to 66% in Thai kratom. If alkaloids make up only 1% …
Citation: Macko E, Weisbach JA, Douglas B. Some observations on the pharmacology of mitragynine. Archives Internationales de Pharmacodynamie et de Therapie. 1972 ;198(1):145-161. We discuss this study from 1972 that tested the effects of mitragynine in rats, mice, cats, dogs, and monkeys. Dr. Jon talks about the difference between now and then in pharmacology labs. …
Journal Club #6: 1972 Animal Study Shows the Promise of Mitragynine Read More »
Just me this time around. I talk about a soon-to-be-released document I’ve been working on through COVID that’s 200 pages of kratom testimonials from over 800 consumers who posted to KratomScience.com. I talk about a study on kratom and metabolism I blogged about here https://www.kratomscience.com/2020/09/22/study-shows-mitragynine-metabolizes-into-7-hydroxomitragynine/. And I talk about my own history of drinking alcohol …
Dr. Cachat and I talk about a study that tested rats with morphine, mitragynine, naloxone, buprenorphine, and rimonabant, and measured responses based on food-reinforcement training. The study concluded “The findings suggest that MG does not induce physiological dependence but can alleviate the physical symptoms associated with morphine withdrawal”. We talk about how the rats are …
Article Citation with Link to Full Text Harun N, Johari IS, Mansor SM, Shoaib M. Assessing physiological dependence and withdrawal potential of mitragynine using schedule-controlled behaviour in rats. Psychopharmacology (Berl). 2020;237(3):855-867. doi:10.1007/s00213-019-05418-6 Summary by KratomScience Rats were studied in two separate experiments: Experiment 1: Observing withdrawal in rats given morphine vs. rats given mitragynine Three …
Dr. Jonathan Cachat joins Kratom Science Podcast host Brian Gallagher to talk about kratom research. Each episode we pick a study about kratom published in a peer-reviewed journal. This week we discuss “Patterns and Reasons for Kratom (Mitragyna speciosa) Use among Current and Former Opioid Poly-Drug Users” published in Journal of Ethnopharmacology, March 2020. Full …
