Cannabidiol is extracted from the flowers and buds of marijuana or hemp plants. It does not produce intoxication; marijuana's "high" is caused by the chemical tetrahydrocannabinol (THC). CBD is being produced without any regulation, resulting in products that vary widely in quality. Some trials suggest that CBD could be effective in treating symptoms of anxiety, particularly social anxiety. Bottom-line advice is people really need to be under the care of a health care provider who understands CBD (WebMD, 2019).