Nirsevimab is used by infants and certain young children
to prevent serious lung infections (such as pneumonia) that are caused the
respiratory syncytial virus (RSV). Nirsevimab belongs to a class of drugs
known as monoclonal antibodies. It works by preventing the growth of the
virus.
Read the Patient Information Leaflet if available from
the health care professional before your child receives nirsevimab. If you
have any questions, ask the doctor or pharmacist.
This medication is given by injection into a muscle by a
health care professional. It is usually given in the upper thigh. It is
given as directed by your child's doctor, usually as a single dose before
or during the child's first RSV season. RSV season in the northern
hemisphere usually starts in October and runs through April. The dosage is
based on your child's weight.
Some children may need another dose of nirsevimab to get
the best protection. Closely follow the treatment schedule provided by the
doctor.
Pain, redness, or swelling at the injection site may
occur. If any of these effects last or get worse, tell the doctor or
pharmacist promptly.
Remember that this medication has been prescribed
because the doctor has judged that the benefit to your child is greater
than the risk of side effects. Many people using this medication do not
have serious side effects.
A very serious allergic reaction to this drug is rare.
However, get medical help right away if you notice any symptoms of a
serious allergic reaction, including:
- bluish skin/lips
- muscle weakness
- rash
- itching/swelling (especially of the face/tongue/throat)
- severe dizziness
- trouble breathing
This is not a complete list of possible side effects. If
you notice other effects not listed above, contact your doctor or
pharmacist.
In the US - Call your doctor for medical advice about side effects.
You may report side effects to FDA at 1-800-FDA-1088 or at
www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about
side effects. You may report side effects to Health Canada at
1-866-234-2345.
Before receiving nirsevimab, tell the doctor or
pharmacist if your child is allergic to it; or if your child has any other
allergies. This product may contain inactive ingredients, which can cause
allergic reactions or other problems. Talk to the pharmacist for more
details.
Before receiving this medication, tell the doctor or
pharmacist your child's medical history, especially of:
- bleeding/blood clotting problems (such as low platelets,
coagulation disorder)
Before having surgery (especially certain heart
procedures), tell the doctor or dentist about this medication and all the
products your child uses (including prescription drugs, nonprescription
drugs, and herbal products).
This medication is not usually used by adults. It is
unlikely to be used during pregnancy or breastfeeding. Consult the doctor
if you have any questions about this medication.
Drug interactions may change how your child's
medications work or increase the risk for serious side effects. This
document does not contain all possible drug interactions. Keep a list of
all the products your child uses (including prescription/nonprescription
drugs and herbal products) and share it with the doctor and pharmacist. Do
not start, stop, or change the dosage of any medicines without the doctor's
approval.
If someone has overdosed and has serious symptoms such
as passing out or trouble breathing, call 911. Otherwise, call a poison
control center right away. US residents can call 1-800-222-1222. Canada
residents can call 1-844-764-7669.
Keep all medical and lab appointments.
Not applicable. This medication is given in a hospital
or clinic and will not be stored at home.
