I Am Taking 2 Tablets Of Loperamide (2MG) Daily Plus

I am taking 2 tablets of Loperamide (2MG) daily plus 1 capsule og DPhenhydramine (25 MG) every 6 hrs and 1 capsule Minocycline (100 MG) daily and then finally 1 tablet of Rantidine (150 MG) daily. I am on parole and not allowed to use drugs but these are prescribed by my Dr. Is it possible the combination could cause my urine to test positive for Meth? I did not use Meth but my UA came back positive for it. If I cannot show it could be a false positive for Meth I will have to go back to jail the end of the week. Please help me find what may be causing the test to come back positive. This is the only thing I can think of I am doing differently now. These are recent prescriptions.