By WeedLife editor-in-chief on Sunday, 08 February 2026
Category: Cannabis News

Introduction to Cannabis Chemistry

Cannabis is a complex plant containing a rich array of chemical compounds, many of which are unique to the species. These compounds interact with the body's endocannabinoid system (ECS) to produce a wide range of physiological and psychological effects. The primary active compounds in cannabis are known as cannabinoids and terpenes.

I. Primary Cannabinoids

Cannabinoids are the most studied class of compounds in cannabis. The two most prominent are Tetrahydrocannabinol (THC) and Cannabidiol (CBD).

A. Tetrahydrocannabinol (THC)

THC is the principal psychoactive component of cannabis. It achieves its mind-altering effects primarily by binding directly to the CB1 receptors located in the brain and central nervous system.

Component

Receptor Binding

Primary Effects

THC

Primarily CB1

Euphoria, altered sensory perception, increased appetite

B. Cannabidiol (CBD)

CBD is a non-intoxicating cannabinoid widely studied for its therapeutic potential. It primarily interacts with the ECS indirectly and is characterized by a low affinity for the CB1 and CB2 receptors.

Component

Receptor Interaction

Primary Effects

CBD

Indirect/Low Affinity

Anti-inflammatory, anti-anxiety, anti-seizure

II. Terpenes: The Aromatic Components

Terpenes are aromatic organic compounds found in many plants, including cannabis. They are responsible for the distinct scent and flavor profiles of different cannabis strains (e.g., citrus, pine, skunk) and are believed to contribute to the overall effect of cannabis through what is known as the "entourage effect"—a synergy between cannabinoids and terpenes.

Common Terpenes and Associated Characteristics:

III. Effects on the Human Body

The physiological and psychological effects of cannabis are highly dependent on the concentration of the compounds, the method of consumption, and individual user tolerance.

A. Consumption Methods

The method used to consume cannabis dictates both the onset and duration of its effects.

Method

Onset Time

Duration

Inhalation

Minutes

1–4 hours

Oral Ingestion

30–120 minutes

4–8 hours

Tinctures (Sublingual)

15–45 minutes

2–6 hours

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