About
Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It
is one of 113 identified cannabinoids in cannabis plants, along
with tetrahydrocannabinol (THC), and accounts for up to 40% of
the plant's extract.[14] As of 2019, clinical research on CBD
included studies related to anxiety, cognition, movement
disorders, and pain, but there is insufficient high-quality evidence
that cannabidiol is effective for these conditions.[15][16]