Read the Patient Information Leaflet and Instructions for Use provided by your pharmacist before you start using dupilumab 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. The injection is given in the upper arms, thighs, or abdomen (except for a 2-inch area around your belly button). The dosage is based on your medical condition and response to treatment. Children's dosage may also be based on weight.

Depending on your product, take the medication out of the refrigerator 30 or 45 minutes before you inject it to allow it to reach room temperature. Do not warm up this medication any other way (for example, do not heat it in the microwave, place it in hot water, or leave it in direct sunlight). Do not shake the medication. Before using, check this product for cloudiness, particles, or discoloration. If you see any of these things, do not use the liquid. 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. Do not inject into skin that is tender, damaged, bruised or scarred. To lessen bruising, do not rub the injection site after a shot. Learn how to store and discard medical supplies safely.

Use this medication regularly to get the most benefit from it. It may help to mark your calendar with a reminder.

Tell your doctor if your condition does not get better or if it gets worse.