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Updated: Apr 16, 2026

Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
Published on: August 1, 2025
Medical cannabis vs. synthetic cannabinoids: What does the future hold?
D Bolognini1,2, R A Ross1
1Department of Pharmacology and Toxicology, University of Toronto, Toronto, Canada.
Cannabis has a long therapeutic history, with the discovery of Δ(9) -tetrahydrocannabinol (Δ(9) -THC) enabling advancements in cannabinoid system research. However, few drugs currently target this system.
Area of Science:
- Pharmacology
- Neuroscience
- Medical History
Background:
- Cannabis has been used medicinally since ancient China (∼2700 BC).
- The identification of Δ(9) -tetrahydrocannabinol (Δ(9) -THC) in 1964 was a pivotal moment.
- This discovery facilitated the creation of synthetic analogs and the identification of cannabinoid receptors.
Purpose of the Study:
- To review the historical context of cannabis in medicine.
- To highlight key breakthroughs in understanding the cannabinoid system.
- To underscore the current limitations in cannabinoid-targeted therapeutics.
Main Methods:
- Historical literature review.
- Analysis of key scientific discoveries related to cannabis and cannabinoids.
- Assessment of current drug development in the cannabinoid system.
Main Results:
- The medical use of cannabis dates back millennia.
- The discovery of Δ(9) -THC led to significant advancements in cannabinoid science.
- Despite scientific progress, there is a notable lack of drugs targeting the cannabinoid system.
Conclusions:
- The cannabinoid system has a rich therapeutic history.
- Key discoveries have advanced our understanding of cannabinoids.
- Further drug development is needed to fully leverage the therapeutic potential of the cannabinoid system.
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