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Regular Insulin

When and How to Take It

General considerations for when and how to take regular insulin include the following:
  • This diabetes medication comes in injectable form. It is injected just under the skin (subcutaneously) usually once or twice a day. There are many different strategies for dosing regular insulin and other insulins; be sure to follow your healthcare provider's recommendations. U-100 regular insulin (but not U-500 regular insulin) can also be given by IV in certain situations.
  • Your healthcare provider should show you exactly how to inject regular insulin. It can be injected into the skin and fat layer of the abdomen (stomach), upper arm, or thigh.
  • Regular insulin comes in vials. You need standard U-100 insulin syringes (with needles) to inject U-100 regular insulin. You need tuberculin syringes (with needles) to inject U-500 regular insulin.
  • Regular insulin can be mixed with NPH insulin (Humulin N or Novolin N) in the same syringe. Be sure to draw up the regular insulin first.
  • For this diabetes drug to work properly, it must be taken as directed. Make sure to monitor your blood sugar levels as your healthcare provider recommends. Even though regular insulin is available without a prescription, it should not be used without a healthcare provider's approval and supervision.

Dosing Information

The dose of regular insulin that your healthcare provider recommends will vary, depending on a number of factors, including:
  • How you respond to regular insulin (especially as measured by your blood sugar levels)
  • The carbohydrate content of your meals
  • Your current dose of other insulins
  • Other medications you are taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
(Click Regular Insulin Dosage for more information.)
Healthy Eating for People With Diabetes

Regular Insulin Information

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