Insulin Regular Human Injection

Pronounced

"IN-sue-lin"

Common brand names:

Humulin R, Novolin GE Toronto

Uses

Insulin regular is used with a proper diet and exercise program to control high blood sugar in people with diabetes. Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke.

This man-made insulin product is the same as human insulin. It replaces the insulin that your body would normally make. It is a short-acting insulin. It works by helping blood sugar (glucose) get into cells so your body can use it for energy. This medication is usually used in combination with a medium- or long-acting insulin product. This medication may also be used alone or with other oral diabetes drugs (such as metformin).

How to Use This Medication

Read the Patient Information Leaflet if available from your pharmacist before you start using this medication and each time you get a refill. Ask your health care professional how to prepare and use this medication. If you have any questions, ask your doctor or pharmacist.

Inject this medication under the skin as directed by your doctor, usually 30 minutes before meals. Because this insulin is fast-acting, not eating right after a dose of this insulin may lead to low blood sugar (hypoglycemia). The injection is given in the stomach area, the thigh, the buttocks, or the back of the upper arm. Do not inject into a vein or muscle because very low blood sugar may occur.

The dosage is based on your medical condition and response to treatment. Measure each dose very carefully because even small changes in the amount of insulin may have a large effect on your blood sugar.

Before using, check this product for particles or discoloration. If either is present, do not use the insulin. Before injecting each dose, clean the skin you are going to inject into (the injection site) with rubbing alcohol. Change the injection site each time to lessen injury under the skin (for example, pits/lumps or thickened skin). Do not inject into skin that is red, swollen, itchy, or damaged. To lessen bruising, do not rub the injection site after a shot. Do not inject cold insulin because this can be painful. The insulin container you are currently using can be kept at room temperature. Learn how to store and discard medical supplies safely.

Giving insulin regular into a vein should only be done by a health care professional. Very low blood sugar may result.

Do not use insulin regular in an insulin pump.

This product may be mixed only with certain other insulin products such as NPH insulin. Always draw the insulin regular into the syringe first, then follow with the longer-acting insulin. Never inject a mixture of different insulins into a vein. Consult your health care professional about which products may be mixed, the proper method for mixing insulin, and the proper way to inject mixtures of insulin.

Do not change brands or types of insulin without directions on how to do so from your doctor.

Do not share your pen device with another person, even if the needle is changed. You may give other people a serious infection, or get a serious infection from them.

Use this medication regularly to get the most benefit from it. To help you remember, use it at the same times each day.

Tell your doctor if your condition does not improve or if it worsens (your blood sugar is too high or too low).

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RxAnswers™ is a copyrighted combined product from TraceGains and First DataBank, Inc.

Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

This information is intended only for residents of the United States. Products sold under the same brand names in other countries may contain different ingredients.

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Information expires December 2025.