Insulin Storage and Care

All insulin pens and bottles (vials) have expiration dates. Refrigerated, unopened insulin pens, insulin cartridges, and insulin vials are good until the expiration date. Do not use insulin after this date. Once insulin is opened, it should be used within a certain time period. Opened means once the rubber is punctured. Always follow the instructions that come with your insulin.


  • If insulin is kept at room temperature, the temperature must be less than 86°F (30°C). Some types of insulin can be stored only at less than 77°F (25°C).

  • If insulin is kept in the refrigerator, the temperature must be between 36°F and 46°F (3°C and 8°C).

  • Do not freeze insulin.

  • Keep insulin away from direct heat or sunlight.

  • Throw away the insulin if it is discolored, thick, or has clumps or suspended white particles in it.

  • Be sure to mix cloudy insulin by rolling between your hands gently. Pens can be "rocked" from end to end.

  • Opened insulin pens should be kept at room temperature.

  • Always have extra insulin on hand.

  • Never leave insulin in your vehicle.