What is shelf life of unopened can cholestyramine?

The shelf life of unopened cholestyramine can vary by manufacturer, but it is generally about 2 to 3 years from the date of manufacture when stored properly in a cool, dry place. It's important to check the expiration date on the packaging for specific guidance. After the expiration date, the effectiveness of the medication may decrease, so it's best to consult a pharmacist or healthcare provider for advice if the medication is past its expiration date.