Erenumab

Erenumab is a monoclonal antibody that blocks the activation of a certain protein that can produce a migraine attack. This protein, called calcitonin gene- related peptide (CGRP), can cause blood vessels to dilate and cause inflammation and migraine headache pain.

Erenumab is used to prevent migraine headaches in adults.

Erenumab may also be used for purposes not listed in this medication guide.

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

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

Erenumab is injected under the skin, usually once per month. A healthcare provider may teach you how to properly use the medication by yourself.

Read and carefully follow any Instructions for Use provided with your medicine. Do not use erenumab if you don't understand all instructions for proper use. Ask your doctor or pharmacist if you have questions.

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

Each single-use prefilled syringe or autoinjector is for one use only. Throw it away after one use, even if there is still medicine left inside.

Do not shake the syringe or autoinjector or you may ruin the medicine.

Your dose needs may change if you switch to a different brand, strength, or form of this medicine. Avoid medication errors by using only the form and strength your doctor prescribes.

Store erenumab in its original carton in the refrigerator, away from heat and light. Do not freeze.

Take the medicine out of the refrigerator and let it reach room temperature for 30 minutes before injecting your dose. Protect from sunlight. Do not heat the medicine in hot water or in a microwave.

You may also store the medicine for up to 7 days at room temperature.

Use a needle and syringe only once and then 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.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Common side effects may include:

• constipation; or

• pain, swelling, or redness where the medicine was injected.

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.

Other drugs may affect erenumab, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.