“To evaluate the efficacy of open-label, highly purified cannabidiol (CBD, Epidiolex®) in treating refractory epilepsy relative to the concomitant use of clobazam (CLB) as well as the clinical implications of changes in CLB and norclobazam (nCLB) levels.”
“With or without concomitant CLB, CBD may be effective in reducing seizure frequency.” https://www.sciencedirect.com/science/article/abs/pii/S0920121119303778?via%3Dihub