The typical approach in dealing with post-traumatic stress disorder (PTSD) and anxiety is exposure-based therapies that include talk therapy and eye movement desensitization and reprocessing (EMDR).
At low doses, THC has an anxiolytic, or anxiety-reducing effect that is similar to serotonin and anti-anxiety medications such as buspirone. In addition, CBD also decreases anxiety and isn’t dose size-specific.
Because medical marijuana lowers the chances that a person experiences euphoria, many people with PTSD use this form of the drug to reduce their symptoms.