Many of you are used to keeping a lot of insulin in your own refrigerator. Generally speaking, 1-2 insulins are enough, and it is not recommended to keep a lot of insulins. Because, insulin stored for a long time, often open and pull the refrigerator door, may be due to temperature fluctuations lead to insulin effect is reduced, can not play a proper role in reducing sugar. First, the unopened insulin storage method Unopened insulin should be placed in the environment of 2-8 ℃ Celsius for long-term storage, in general, insulin is not taken from the refrigerator now. It needs to be injected at room temperature. Even if it is taken out from the refrigerator, it should be placed at room temperature for about 60 minutes to let the temperature of insulin return to room temperature before injection, and insulin at low temperature is more painful to fight. In other words, even in summer, a cool location in the house can be placed insulin pen with refill. Second, the opened insulin storage method The opened insulin injection can be stored at room temperature, and can be stored for about 28 days if the temperature does not exceed 30 ℃; moreover, insulin injection repeatedly placed in a hot and cold environment is more likely to cause insulin failure, so there is no need to put it in the refrigerator again. It should be noted that the insulin pen with refills cannot be put into the refrigerator and repeatedly put in and out. This is because if the needle is not removed, insulin will inhale air during the process of thermal expansion and contraction, forming air bubbles and causing inaccurate injection volume. Therefore, after each injection with insulin is completed, simply remove the needle and store it at room temperature. Generally speaking, under the refrigerated temperature, insulin can always maintain its proper efficacy as long as the expiration date of the drug is not exceeded. Insulin can be stored under special conditions When you take a flight, insulin (with a hospital prescription) cannot be checked in your luggage, but you can take it on board with you in a thermostatic preservation box. Since the temperature in the baggage compartment of airplanes is often below the freezing point, insulin may freeze and lose its effectiveness. Insulin preparations that have been frozen and frozen should not be thawed and used again. In addition, insulin is also afraid of heat. Even in winter, insulin should not be exposed to direct sunlight to avoid failure.