Scientists consider kava (Piper methysticum) a narcotic and a hypnotic, but not a hallucinogen or a stupefacient. It is used throughout the South Pacific as a social intoxicant, an aid to religious inspiration, and as medicine for a number of conditions. Here is a review of the literature on kava's botany, chemistry, ethnobotany, pharmacology, social usage, distribution, and the economic potential for its spread beyond the region. Annotation c. by Book News, Inc., Portland, Or.