Long-Term Efficacy for Epidiolex in Resistant Epilepsy Pauline Anderson  Medscape - Dec 17, 2018. https://www.medscape.com/viewarticle/906653   NEW ORLEANS — Results of open-label extension trials show the recently approved drug Epidiolex (GW Pharmaceuticals), a purified formulation of cannabidiol (CBD), is safe and effective beyond a year in patients with Lennox-Gastaut Syndrome (LGS) and Dravet Syndrome, two rare and resistant epilepsy types. "We now have long-term data to say that it still works; the efficacy is not going to drop off, and more importantly, it's still going to be safe and you're not going to learn anything new down the road," study author Anup D. Patel, MD, Section Chief of Pediatric Neurology, [...]