Insulin is a hormone that is produced by the body to control blood sugar. If your body does not produce enough insulin, your doctor may prescribe it for you. There are many types of insulin. Each type works differently. For example, some work quickly to get the sugar into the cells, while others work slowly and last longer in the body, taking more time to get the sugar into the cells. These differences are important learn about if you are prescribed insulin. Below are three important things to know about insulin.
• Onset: the length of time after injection that insulin begins to work
• Peak: the length of time after injection that the insulin takes to reach its maximum effect
• Duration: the length of time that the insulin continues to work inside the body
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List updated June 2021
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