Introduction Undoubtedly one of the most commonly used substances in the world, Cannabis is illegal in a number of countries yet very many people will use it at one point or another in their lives. Estimates indicate that about 4% of the global population will use the substance at least once. The active compounds found in Cannabis and which are responsible for the effects of the same are primarily THC (tetrahydrocannabinol) and CBD (cannabidiol). Interestingly, the concentration of Cannabis ...