The Alabama Medicaid Agency preferred drug list is determined by decisions made by the Medicaid Pharmacy and Therapeutics (P&T) Committee which is required by state law to advise and assist the agency in the development of a drug plan. The mandatory Preferred Drug program began in 2003. Drugs selected for the PDL typically do not require prior authorization (PA). In most cases, all generic products are preferred and do not appear on the lists below. The list is updated quarterly.