i had a friend here in michigan that flat came out and told the judge and his probation officer that he has his card for MEDICAL REASONS and he was allowed to use it still just like if he had prescriptions. they cant take away ur prescriptions. ide talk with his attorney and have it brought up, cuz my buddie is now allowed to drop dirty for that, just has to pass breath tests and do a.a. classes....its kinda 1 of those gray areas