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Generic name: insulin lisproIN-soo-lin-LISS-pro ]
Drug class: Insulin

Medically reviewed by Philip Thornton, DipPharm. Last updated on Aug 14, 2023.

What is Admelog?

Admelog is a hormone that works by lowering levels of glucose (sugar) in the blood. Insulin lispro is a fast-acting insulin that starts to work about 15 minutes after injection, peaks in about 1 hour, and keeps working for 2 to 4 hours.

Admelog is used to improve blood sugar control in adults and children with diabetes mellitus.

Admelog is used to treat type 2 diabetes in adults, or type 1 diabetes in adults and children who are at least 3 years old.

Admelog injection 100 units/ml (U-100) is available in 10 ml multiple-dose vials, 3 ml multiple-dose vials, and a 3 ml single-patient-use SoloStar prefilled pens.


You should not use Admelog if you are allergic to insulin lispro, or if you are having an episode of hypoglycemia (low blood sugar).

Never share an injection pen, cartridge, or syringe with another person, even if the needle has been changed.

Before taking this medicine

Admelog should not be given to a child younger than 3 years old. This medicine should not be used to treat type 2 diabetes in a child of any age.

To make sure Admelog is safe for you, tell your doctor if you have ever had:

Tell your doctor if you also take medicine that contains pioglitazone or rosiglitazone. Taking certain oral diabetes medicines while you are using Admelog may increase your risk of serious heart problems.

Tell your doctor if you are pregnant or breastfeeding.

Follow your doctor's instructions about using insulin if you are pregnant or you become pregnant. Controlling diabetes is very important during pregnancy, and having high blood sugar may cause complications in both the mother and the baby.

How should I use Admelog?

Use Admelog exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Admelog is injected under the skin with a syringe and needle, a SoloStar injection pen, or with an infusion pump. A healthcare provider will teach you how to properly use the injection by yourself.

Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you do not understand these instructions.

Prepare your injection only when you are ready to give it. Do not use if the medicine looks cloudy, has changed colors or has particles in it. Call your pharmacist for new medicine.

Admelog is given within 15 minutes before a meal, or right after eating.

Your healthcare provider will show you where on your body to inject Admelog. Use a different place each time you give an injection. Do not inject into the same place two times in a row. Do not inject into skin that is damaged, tender, bruised, pitted, thickened, scaly, or has a scar or hard lump.

Never share the SoloStar injection pen, Admelog vial, or syringe with another person, even if the needle has been changed. Sharing these devices can allow infections or disease to pass from one person to another.

You may have low blood sugar (hypoglycemia) and feel very hungry, dizzy, irritable, confused, anxious, or shaky. To quickly treat hypoglycemia, eat or drink a fast-acting source of sugar (fruit juice, hard candy, crackers, raisins, or non-diet soda).

Your doctor may prescribe a glucagon injection kit in case you have severe hypoglycemia. Be sure your family or close friends know how to give you this injection in an emergency.

Also watch for signs of high blood sugar (hyperglycemia) such as increased thirst or urination.

Blood sugar levels can be affected by stress, illness, surgery, exercise, alcohol use, or skipping meals. Ask your doctor before changing your dose or medication schedule.

Keep this medicine in its original container protected from heat and light. Do not freeze Admelog or store it near the cooling element in a refrigerator. Throw away any insulin that has been frozen.

Storing unopened (not in use) Admelog:

Storing opened (in use) Admelog:

Use a needle and syringe only once and place them in a puncture-proof "sharps" container. Follow state or local laws about how to dispose of this container. Keep it out of the reach of children and pets.

What happens if I miss a dose?

Since Admelog is used with meals, you may not be on a timed dosing schedule. Whenever you use Admelog, follow the directions for your specific brand about whether to use the medicine before of after you eat. Do not use two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Insulin overdose can cause life-threatening hypoglycemia. Symptoms include drowsiness, confusion, blurred vision, numbness or tingling in your mouth, trouble speaking, muscle weakness, clumsy or jerky movements, seizure (convulsions), or loss of consciousness.

What should I avoid while using Admelog?

Insulin can cause low blood sugar. Avoid driving or operating machinery until you know how Admelog will affect you.

Avoid medication errors by always checking the medicine label before injecting your insulin.

Avoid drinking alcohol.

Admelog side effects

Get emergency medical help if you have signs of an allergy to Admelog: redness or swelling where an injection was given, itchy skin rash over the entire body, trouble breathing, fast heartbeats, feeling like you might pass out, or swelling in your tongue or throat.

Call your doctor at once if you have:

Common Admelog side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Admelog?

Many other medicines can affect your blood sugar, and some medicines can increase or decrease the effects of insulin. Some drugs can also cause you to have fewer symptoms of hypoglycemia, making it harder to tell when your blood sugar is low. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using. This includes prescription and over-the-counter medicines, vitamins, and herbal products.

Popular FAQ

No, Admelog (insulin lispro) is not the same as NovoLog (insulin aspart). These insulins have different chemical structures but they are both man-made, rapid-acting forms of insulin used to help lower mealtime blood sugar (glucose) levels in patients with diabetes. Continue reading

Injecting insulin is not difficult, but it does take a bit of practice. There are three main sites where insulin can be injected: the stomach area except for a 2-inch circle around your navel, and the soft part of your waist, but not anywhere near your spine; the top and outer part of your thighs, but not your inner thighs or anywhere close to your knee; the outer back of your upper arm where there is a pocket of fatty tissue. Continue reading

Trulicity can be used with insulin, but because the combination of Trulicity and insulin increases the risk of low blood sugar levels (hypoglycemia), the dosage of insulin may need to be reduced. Continue reading

Insulins are usually grouped as fast-acting, intermediate-acting, or long-acting. Within these groups, they can be further classified as human insulin and human insulin analogs. An insulin analog is a human insulin that has one or two amino acids changed which affects how quickly it is absorbed after injection and how fast or slow it acts. Insulin analogs are usually given within 15 minutes of a meal or at the same time as food. Continue reading

Lispro peaks 30 to 90 minutes after administration and lasts for less than five hours (usually two to four hours). Continue reading

Humalog (insulin lispro) is a fast-acting insulin. It begins working to lower blood sugar levels about 15 minutes after injection, reaches a peak in about 1 hour, and continues to work for 2 to 4 hours. Humalog helps to control the blood sugar spikes that may occur during mealtime. It is used within 15 minutes before eating or right after eating a meal. Continue reading

Unopened Admelog (insulin lispro injection) should be stored in the refrigerator (36°F to 46°F or 2°C to 8°C) until the first use. Once you have opened the Admelog vial or Solostar pens, you can store them at room temperature (below 86°F or 30°C), but they must be used within 28 days or thrown away (discarded), even if they still contain medicine. Do not store the Admelog Solostar pen in the refrigerator once in use. Continue reading

Admelog is a brand (trade) name for insulin lispro and it is a fast-acting insulin. Admelog starts working within 0 to 15 minutes of administration, can be given 15 minutes before a meal or with a meal, peaks in 30 to 90 minutes,keeps working for less than five hours (usually two to four hours), should generally be used in regimens with intermediate or long-acting insulin and is more convenient and safer than regular insulin. Continue reading

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Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Admelog only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.