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Alirocumab Injection

pronounced as (al" i rok' ue mab)

Why is this medication prescribed?

Alirocumab injection is used along with diet, alone or in combination with other cholesterol-lowering medications (HMG-CoA reductase inhibitors [statins] or ezetimibe [Zetia, in Liptruzet, in Vytorin]), in adults who have familial heterozygous hypercholesterolemia (an inherited condition in which cholesterol cannot be removed from the body normally) to decrease the amount of low-density lipoprotein (LDL) cholesterol ('bad cholesterol') in the blood. It is also used in adults with cardiovascular disease to lower the risk of stroke, heart attack, or serious or life-threatening chest pain. Alirocumab injection is also used with other medications to treat homozygous familial hypercholesterolemia (HoFH; an inherited condition in which cholesterol cannot be removed from the body normally) in adults to decrease LDL cholesterol. Alirocumab injection is in a class of medications called proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitor monoclonal antibodies. It works by blocking the production of LDL cholesterol in the body therefore decreasing the amount of cholesterol that may build up on the walls of the arteries.

Accumulation of cholesterol along the walls of your arteries (a process known as atherosclerosis) decreases blood flow and, therefore, the oxygen supply to your heart, brain, and other parts of your body.

How should this medicine be used?

Alirocumab injection comes as a solution (liquid) in a prefilled syringe and a prefilled dosing pen to inject subcutaneously (just under the skin) once every 2 or 4 weeks. Use alirocumab injection at around the same time every 2 or 4 weeks. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Use alirocumab injection exactly as directed. Do not use more or less of this medication or use it more often or for a longer period of time than prescribed by your doctor.

After 4 to 8 weeks of therapy, your doctor may increase your dose depending on your response to this medication.

Alirocumab injection helps to control cholesterol levels, but does not cure these conditions. Continue to use alirocumab injection even if you feel well. Do not stop using alirocumab injection without talking to your doctor.

Alirocumab injection comes in prefilled dosing pens and prefilled syringes that contain enough medication for one dose. If your doctor tells you that you need to use more than one pen or syringe for your dose, use the pens or syringes one right after the other into different injection sites. It may take up to 20 seconds to inject the medication. Always inject alirocumab in its own prefilled dosing pen or syringe; never mix it with any other medication. Dispose of used needles, syringes, and devices in a puncture-resistant container; never re-use a prefilled pen or syringe. Talk to your doctor or pharmacist about how to dispose of the puncture-resistant container.

You can inject alirocumab injection in your thigh, upper arms, or stomach area, except for the 2-inch area around your navel (belly button) and near your waistline. Use a different spot for each injection. Do not inject into an area where the skin is sore, red, bruised, swollen, sunburned, hard, hot, infected, or injured in any way or into areas with visible veins, scars, rashes, or stretch marks.

Carefully read the manufacturer's instructions for use that comes with the medication. These instructions describe how to inject a dose of alirocumab injection. Be sure to ask your pharmacist or doctor if you have any questions about how to inject this medication.

Remove the prefilled syringe or prefilled dosing pen from the refrigerator and allow it to warm to room temperature for about 30 to 40 minutes before using it. Do not put the prefilled syringe or prefilled dosing pen back in the refrigerator after it has been warmed to room temperature.

Before you use alirocumab injection, look at the solution in the prefilled syringe or pen closely. The medication should be clear to pale yellow and free of floating particles. Do not shake the prefilled syringe or prefilled dosing pen containing alirocumab injection.

Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.

Other uses for this medicine

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

Before using alirocumab injection,

  • tell your doctor and pharmacist if you are allergic to alirocumab injection, any other medications, or any of the ingredients in alirocumab injection. Ask your pharmacist for a list of the ingredients.
  • tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
  • tell your doctor if you have or have ever had any medical conditions.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while using alirocumab injection, call your doctor.

What special dietary instructions should I follow?

Eat a low-fat, low-cholesterol diet. Be sure to follow all exercise and dietary recommendations made by your doctor or dietitian. You can also visit the National Cholesterol Education Program (NCEP) website for additional dietary information at:

What should I do if I forget a dose?

If you inject alirocumab injection every 2 weeks, inject the missed dose of alirocumab injection as soon as you remember it if it is within 7 days of the missed dose and resume your original schedule. However, if it is longer than 7 days from the missed dose, skip this dose, and wait until your next regularly scheduled dose.

If you inject alirocumab injection every 4 weeks, inject the missed dose of alirocumab injection as soon as you remember it if it is within 7 days of the missed dose and resume your original schedule. If it has been longer than 7 days from the missed dose, then inject a dose and start a new 4-week schedule based on this date.

Do not inject a double dose to make up for a missed dose. Call your doctor if you miss a dose and have questions about what to do.

What side effects can this medication cause?

Alirocumab injection may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • redness, itching, swelling, pain, or tenderness at the injection site
  • flu-like symptoms, fever, headache, or chills

Some side effects can be serious. If you experience any of these symptoms, stop using alirocumab injection and call your doctor immediately or get emergency medical treatment:

  • itching
  • rash
  • hives
  • difficulty breathing or swallowing
  • swelling of the face, throat, tongue, lips, and eyes

Alirocumab injection may cause other side effects. Call your doctor if you have any unusual problems while using this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( or by phone (1-800-332-1088).

What should I know about storage and disposal of this medication?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it in the refrigerator, but do not freeze it. Alirocumab injection may also be kept at room temperature up to 77° F (25° C) in the original carton for up to 30 days. After 30 days, alirocumab must be discarded. Keep alirocumab injection protected from light in the original carton.

It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach.

Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( for more information if you do not have access to a take-back program.

In case of emergency/overdose

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

What other information should I know?

Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to alirocumab injection.

Do not let anyone else use your medication. Ask your pharmacist any questions you have about refilling your prescription.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand names

  • Praluent®
Last Revised - 06/15/2021