Certain medications have a quantity limit, also known as managed drug limitations (MDL). These medications require prior authorization from your doctor for doses that are more than the recommended dosage. Medications with quantity limits are listed as “MDL” in the formulary. To obtain a larger quantity of these medications, your doctor should fill out a prior authorization request form and send it to Priority Partners. Priority Partners will then review the request and notify you and your doctor whether the request is approved or denied.