Store unopened bottles in the refrigerator and do not use after the expiration date. Don't freeze insulin.
Store bottles you are using at room temperature (59 to 86 degrees Fahrenheit) for 28 to 30 days. The strength of the insulin may be altered after that.
Avoid exposing the bottles to temperature extremes (less than 36 degrees Fahrenheit or more than 86 degrees Fahrenheit).
Don't use regular insulin if it becomes cloudy in appearance.
Don't use intermediate-acting insulin if it becomes clumped or crystallized or if the bottle becomes frosted.
Make sure that you recheck your dosage whenever you change insulin.
Get guidance from your healthcare team before mixing insulins or prefilling syringes.
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