I am not sure. I do believe that although rem is SOC, it is not used all the time and everywhere due to lack of availability. I believe that doctors are adhocing whatever they have available at this time. Here is the latest on rem. Sad that all these state AGs are clamoring for it when it isn't even terribly effective. https://www.usatoday.com/story/news/health/20...580087002/