Dr. Dennis Mckenna
A Drink With Dr. Dennis Mckenna – Part 2Dr. Dennis McKenna is an ethnopharmacologist who has studied plant hallucinogens for over forty years. He is the author of many scientific papers, and co-author, with his brother Terence McKenna, He holds a doctorate from the University of British Columbia, He received post-doctoral research fellowships in the Laboratory of Clinical Pharmacology, National In



