The Colorado Independent reports that the Harrison School District has barred a student from attending classes if he has taken medicine to control his seizures. The boy, who isn't named in the report, missed most of the last school year because of the seizures. He was prescribed a lozenge containing TCH, the active ingredient in marijuana, to control the seizures. But the school said he couldn't bring the pills to school because it would violate its zero tolerance policy on drugs. The family asked if the boy could walk home to take his medicine, but school officials said that consuming the pills would also violate their policy.