My doctor has suddenly started asking for a urine test each month to prescribe my medicine. I have been taking this for years now and never been asked before. The medicine is xanax and is for the shakes i occasionally get with graves disease. Does anyone know if this is required by the state(Ohio) or federal govt? My bill for this test is $450 each this is monthly as doesn't make sense. Obviously this is more than the regular visit and my prescriptions.