Regular Insulin Information
Even though it is made in a laboratory, regular insulin (Humulin® R, Novolin® R) is identical to the insulin produced by the human body. It is the standard, basic, "no frills" insulin used to help control blood sugar in people with diabetes. This medication is short-acting and is specifically used to control the rise in blood sugar that occurs after meals. It is typically used in combination with a long-acting insulin.
Regular insulin comes in two concentrations -- standard U-100 (100 units per mL) and U-500 (500 units per mL). The U-500 form is especially useful for people who take very high doses of insulin, since it allows for a smaller volume to be injected.
Before using regular insulin, make sure your healthcare provider has up-to-date information on any other drugs you are taking, including vitamins and supplements, as well as any allergies you may have, including to medications, foods, dyes, or preservatives. Also, let your healthcare provider know if you have liver or kidney disease.
(For more information, click Regular Insulin. This article includes details about how it works, potential side effects, and general safety precautions.)