Quantity limits; certain prescription medications have specific quantity limits per prescription or per month. SP: Specialty Pharmacy . ST: Step therapy is required. You may need to use one medication before benefits for the use of another medication can be authorized. Welcome to the Kentucky Cabinet for Health and Family Services, Department for Medicaid Services Fee-For-Service Pharmacy Program portal, administered and maintained in conjunction with Magellan Medicaid Administration. The web portal provides online access to prescription and Kentucky specific plan information as well as supporting documentation. The PDL addresses certain drug classes: Some drug classes will not be reviewed for preferred status because of no and/or limited cost savings, if the class is all and/or mostly generic, or if there is low utilization in that class. Drugs, historically covered by Medicaid and not listed on the PDL, will continue to be covered.