Patients Receiving Other Oral Hypoglycemic Agents: As with other sulfonylurea-class hypoglycemics, no transition period is necessary when transferring patients to glipizide extended-release tablets. The decision to switch to the nearest equivalent dose or to titrate should be based on clinical judgment. Store Glipizide ER in dry place, in its original container, and at room temperature between 59 -86 or glucotrol price 15 -30. Alternatively, glipizide may be effective in some patients who have not responded or have ceased to respond to other sulfonylureas. Pregnancy Pregnancy Category GLUCOTROL glipizide was found to be mildly fetotoxic in rat reproductive studies at all dose levels 50 mg kg.