Enflonsia Prefilled Syringe (cvx 332)

Enflonsia Prefilled Syringe (cvx 332) is used to prevent lung disease caused by respiratory syncytial virus (RSV) in newborns and babies up to 12 months old who are born during or about to enter their first RSV season.

Enflonsia Prefilled Syringe (cvx 332) is a man-made antibody that helps protect the body against respiratory syncytial virus (RSV) infection for up to 5 months.

Enflonsia Prefilled Syringe (cvx 332) may also be used for purposes not listed in this medication guide.

Tell your doctor if you use other medicines or have other medical conditions or allergies.

Your child should not get Enflonsia Prefilled Syringe (cvx 332) if they have ever had a life-threatening allergic reaction to this medicine or any part of Enflonsia Prefilled Syringe (cvx 332).

Let your doctor know if your child has or has ever had:

• a severe allergic reaction to antibodies known as immunoglobulins; or
• heart surgery planned during or at the start of their first RSV season.

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

Call the doctor right away if your child has:

• muscle weakness;
• trouble swallowing;
• blue lips or fingernails; or
• bluish skin.

Common side effects of Enflonsia Prefilled Syringe (cvx 332) may include:

• rash; or
• redness or swelling where the injection was given.

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

Your child should receive Enflonsia Prefilled Syringe (cvx 332) before the start of or during the RSV season. Your healthcare provider can inform you when the RSV season starts in your area.

Enflonsia Prefilled Syringe (cvx 332) is given once as an injection (shot) into the leg muscle. A healthcare provider will give this injection.

If your child has heart surgery, your child may receive another dose of this medicine.

Your child may still get infected with RSV after receiving Enflonsia Prefilled Syringe (cvx 332). Ask your child's healthcare provider about what symptoms to look for.

This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using Enflonsia Prefilled Syringe (cvx 332).

Your child can receive Enflonsia Prefilled Syringe (cvx 332) at the same time as routine childhood vaccines.

Enflonsia Prefilled Syringe (cvx 332) is given as a single dose and does not require daily dosing.

An overdose of clesrovimab is not likely to happen.

Follow the doctor's instructions regarding any limits on food, drinks, or activities.

Other drugs may affect Enflonsia Prefilled Syringe (cvx 332), including prescription and over-the-counter medicines, vitamins, and herbal products. Tell the doctor about all other medicines your child uses.

Find detailed information on biosimilars for this medication.