THC
Category: Scientific · Level: Beginner
Tetrahydrocannabinol (THC) is the primary psychoactive cannabinoid in cannabis, responsible for the 'high' associated with its use.
Tetrahydrocannabinol (THC) is a phytocannabinoid and the principal psychoactive constituent of cannabis. It acts as a partial agonist at CB1 and CB2 receptors of the endocannabinoid system. THC is responsible for most of cannabis's psychological effects, including euphoria, altered sensory perception, and relaxation. In medical contexts, it is studied for its analgesic, antiemetic, and appetite-stimulating properties. THC is controlled under Schedule I of the US Controlled Substances Act and under international drug treaties, although its legal status varies significantly by jurisdiction.
Also known as
Tetrahydrocannabinol, Delta-9-THC, Δ9-THC
Usage
- Medical
- Recreational
- Legal
Regulatory notes
THC is a Schedule I controlled substance under US federal law. Many states have enacted medical or adult-use programs permitting its regulated use. In the EU, THC content limits in hemp products are typically 0.2–0.3%.
Related terms
- Cannabinoid — Cannabinoids are chemical compounds that interact with the endocannabinoid system, found naturally in cannabis or produced synthetically.
- CBD — Cannabidiol (CBD) is a non-psychoactive cannabinoid found in cannabis and hemp, widely used in medical research and consumer wellness products.
- Endocannabinoid System — The endocannabinoid system (ECS) is a cell-signaling network in the human body that regulates a broad range of physiological processes including mood, pain, appetite, and immune function.
- THCA — Tetrahydrocannabinolic acid (THCA) is the non-psychoactive acidic precursor to THC found in raw, unheated cannabis.