questran and Chlorpropamide Interactions

Interactions between questran(cholestyramine) and Chlorpropamide (chlorproPAMIDE)

chlorproPAMIDE and cholestyramine (Moderate Drug-Drug)

ADJUST DOSING INTERVAL: Cholestyramine may decrease hypoglycemic effect of some sulfonylureas by decreasing their absorption and enterohepatic recirculation. Data exist for glipizide; the effect of cholestyramine on the pharmacokinetics of other sulfonylureas is unknown.

MANAGEMENT: Sulfonylureas should be administered at least one hour before or four to six hours after cholestyramine. Patients receiving this combination should be advised to closely monitor their blood sugar and to notify their physician if loss of control occurs.