Lukey recently came back from Cincinnati and after being on Co Q 10 for a year and a half his level dropped considerably. He takes 300mgm. per day of chewable Co Q 10 from Epic 4 Health. We were advised to change brands although Epic 4 Health was their initial recommendation. He takes all of his supplements and deflazacort with grape juice. We will be changing the Co Q 10 brand to Nature Made as suggested. Has anyone encountered this with their boys? Somewhere on the old site I remember reading about incompatibility with some supplements and certain juices but I was unable to find it. Any help or advice would be appreciated. Joanne, Lukey's Grandma