Abstract
Herbal preparations, designed to be smoked or ingested for health and happiness, are promoted as legal hallucinogens, euphoriants and marihuana substitutes. A total of 25 psychoactive substances have been identified in these products, and a number of intoxications have resulted from their short or long-term use. Physicians should be alerted to the nature of these effects when taking drug histories, and their possible role in the causation of medical complaints should be considered.

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