Download or read book Kratom and Other Mitragynines written by Robert B. Raffa and published by CRC Press. This book was released on 2014-10-29 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Opioids such as morphine, codeine, and oxycodone are extracts or analogs isolated from a single source: the opium poppy. For a long time, it was believed to be nature's only source of opioids. But it now appears that biological diversity has evolved an alternative source of opioid compounds-those derived from the plant Mitragyna speciosa. This plan