Cannabidiol (CBD) is biphasic, meaning at a low and high doses, CBD can produce opposite effects. Small doses of CBD tend to be energizing and stimulating, while larger doses tend to be relaxing and sedating.
Although the side effects of CBD are limited, an excessive amount of CBD could be less therapeutic than a moderate dose. Therefore, we recommend you start low, and go slow.
CBD Has Effects on Many Different Receptor Systems
Although it is a cannabinoid, CBD does not directly interact with the two classical cannabinoid receptors (CB1 and CB2). Instead, it affects signaling through CB1 and CB2 receptors indirectly. This partly explains why, in contrast to THC, CBD is non-intoxicating. In addition to its indirect influence on the CB1 and CB2 receptors, CBD can increase levels of the body’s own naturally-produced cannabinoids (known as endocannabinoids) by inhibiting the enzymes that break them down.
Even more intriguing: CBD also influences many non-cannabinoid receptor systems in the brain, interacting with receptors sensitive to a variety of drugs and neurotransmitters (Figure 2). These include opioid receptors, known for their role in pain regulation. Opioid receptors are the key targets of pharmaceutical pain killers and drugs of abuse such as morphine, heroin, and fentanyl. CBD can also interact with dopamine receptors, which play a crucial role in regulating many aspects of behavior and cognition, including motivation and reward-seeking behavior.