mitragynine

What is speciofoline? The understudied kratom alkaloid

The most studied alkaloids of the 40 identified in kratom are mitragynine (MG) and 7-hydroxymitragynine (7-OH). Recently, a team of researchers studied speciofoline (C22H28N2O5), a kratom alkaloid present in less than 1% of alkaloids. They found that speciofoline does not bind to mu-opioid receptors (MOR) like MG and 7-OH. They also found unexpectedly that levels …

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Journal Club #9: Speciofoline, the Understudied Alkaloid

Journal Club with Dr. Jonathan Cachat
Journal Club with Dr. Jonathan Cachat
Journal Club #9: Speciofoline, the Understudied Alkaloid
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A study on kratom’s chemical composition asks, what does the little-researched kratom alkaloid speciofoline do? And what are the implications for drug interactions and the differences in alkaloid content in kratom products? The brand new study published last week in Scientific Reports examined the chemical composition of 53 kratom products and divided them into two …

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Is Kratom a Drug?

Is kratom a drug, a medicinal herb, a dietary supplement, a “safe food”, a tea? These terms have a whole lot to do with social perception, a little to do with legal issues, and nothing to do with science. Kratom is a shrub that grows natively in Southeast Asia. Botanically, kratom comes from the Rubiaceae …

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38. Psychiatrists Overstate the Dangers of Kratom

Kratom Science Podcast
Kratom Science Podcast
38. Psychiatrists Overstate the Dangers of Kratom
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In a recent webinar, psychiatrists describe kratom as dangerous with lethal overdose and toxicity potential. Using the studies they cite, Brian Gallagher explains why the dose of mitragyinine to establish LD50 in mice is far beyond the levels consumed in leaf and even extracted kratom, and why one investigation into coroners’ reports disproved claims of …

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Journal Club #6: 1972 Animal Study Shows the Promise of Mitragynine

Journal Club with Dr. Jonathan Cachat
Journal Club with Dr. Jonathan Cachat
Journal Club #6: 1972 Animal Study Shows the Promise of Mitragynine
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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. …

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37. Sober October Starts Early

Kratom Science Podcast
Kratom Science Podcast
37. Sober October Starts Early
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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 …

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Journal Club w/ Dr. Jonathan Cachat #5: Mitragynine Study in Rats Leads to Interesting Conclusions

Journal Club with Dr. Jonathan Cachat
Journal Club with Dr. Jonathan Cachat
Journal Club w/ Dr. Jonathan Cachat #5: Mitragynine Study in Rats Leads to Interesting Conclusions
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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 …

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Study: Pure mitragynine “does not induce physiological dependence” in rats, treated morphine withdrawal more efficiently than buprenorphine

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 …

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Journal Club with Dr. Jonathan Cachat #1

Journal Club with Dr. Jonathan Cachat
Journal Club with Dr. Jonathan Cachat
Journal Club with Dr. Jonathan Cachat #1
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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 …

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