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The Pharmacology of Delta-9-Tetrahydrocannabinol (THC)

Leslie Iversen

The Science of Marijuana 2019 DOI: 10.1093/oso/9780190846848.003.0002 (opens in new tab)

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AI-extracted from the abstract
Characteristics Review Peer reviewed
Topics Cannabis
Key findings The chapter traces the discovery of THC as cannabis's psychoactive substance and of the CB-1 and CB-2 cannabinoid receptors, describing how cannabinoids act at these receptors to inhibit neurotransmitter release. It also reviews ingestion methods such as smoking and vaping and discusses synthetic receptor agonists and antagonists, including the proliferation of synthetic agonists as novel psychoactive agents.

Abstract

Abstract The 19th century was a great era for plant chemistry. Many complex drug molecules, known as alkaloids, were isolated and identified from plants. This chapter discusses the history of the discovery of delta-9-tetrahyrocannabinol (THC) as the psychoactive substance in cannabis products and also the discovery of the cannabinoid receptors CB-1 and CB-2 in the body and brain. The mechanism of action of cannabinoids on such receptors to inhibit neurotransmitter release or other actions is also discussed. In addition, various methods for the ingestion of cannabis, such as smoking and vaping, are reviewed. Synthetic agonists and antagonists at cannabinoid receptors and the proliferation of synthetic agonists as novel psychoactive agents are also discussed.

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