This 2024 review investigates the antidepressant mechanisms of cannabidiol (CBD), focusing on its interaction with serotonin and BDNF-TrkB signaling pathways. CBD may exert rapid and sustained antidepressant effects by increasing serotonin release in the prefrontal cortex via action on dorsal raphe nuclei and enhancing BDNF-TrkB signaling, which promotes neuroplasticity. These