Handling and Storing Insulin

When insulin is not handled and stored properly, it may not work right, so be sure to read the directions that are packaged with your insulin vials or pens.

To keep insulin in good condition, you must do the following:

• Keep your extra supply of insulin in the refrigerator.
• Never let your insulin freeze.
• If you use a vial, keep the vial you are currently using in the refrigerator whenever possible.
• Your unused pens should be stored in the refrigerator.
• The pen you are currently using should not be stored in the refrigerator.
• Keep unrefrigerated insulin as cool as possible (below 86°F) and away from heat and light.
• Never shake your insulin hard or let it get tossed around. Insulin that's handled roughly is more likely to clump or frost.

Check the expiration date

Always look at the expiration date printed on the insulin box before you buy it. The date must allow enough time for you to use all the insulin in the vial or pen. Do not buy or use insulin past its expiration date.

Make sure you're buying the right kind of insulin

Using the wrong insulin can affect your diabetes control, so check the box and label carefully before you buy. In order to make sure you're getting the right kind, you must know the exact kind and brand name of insulin your doctor wants you to take.

Any change of insulin should be made cautiously and only under medical supervision.

Make sure the contents are in good condition

Regular insulin:

• should be clear and have no color
• do not use if it looks cloudy, thickened, even slightly colored, or has solid particles in it

Mixture insulin:

• should have an even, cloudy appearance after gentle mixing/rolling
• do not use if there are clumps in the insulin after mixing
• do not use if particles on the bottom or wall give the vial a frosted appearance

If any of these conditions appear, call the insulin manufacturer.