Psychoactive Natural Products: Overview of Recent Developments
12 Ann Ist Super Sanità 2014 | Vol. 50, No. 1: 12-27 DOI: 10.4415/ANN_14_01_04 Psychoactive natural products: overview of recent developments István Ujváry REVIEWS iKem BT, Budapest, Hungary AND Abstract Natural psychoactive substances have fascinated the curious mind of shamans, artists, Key words ARTICLES scholars and laymen since antiquity. During the twentieth century, the chemical com- • ethnopharmacology position of the most important psychoactive drugs, that is opium, cannabis, coca and • mode of action “magic mushrooms”, has been fully elucidated. The mode of action of the principal in- • natural products gredients has also been deciphered at the molecular level. In the past two decades, the • psychopharmacology RIGINAL use of herbal drugs, such as kava, kratom and Salvia divinorum, began to spread beyond • toxicology O their traditional geographical and cultural boundaries. The aim of the present paper is to briefly summarize recent findings on the psychopharmacology of the most prominent psychoactive natural products. Current knowledge on a few lesser-known drugs, includ- ing bufotenine, glaucine, kava, betel, pituri, lettuce opium and kanna is also reviewed. In addition, selected cases of alleged natural (or semi-natural) products are also mentioned. O, mickle is the powerful grace that lies In herbs, plants, stones, and their true qualities William Shakespeare (Romeo and Juliet) INTRODUCTION Historical background of psychoactive natural During the past 200 years, there has been major pro- products research gress in our understanding of the composition and ef- The biochemical machinery of an organism generates fects of many psychoactive natural products, particular- many structurally related chemicals (Nature’s “combinato- ly those that have therapeutic uses.
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