Sign Up for Updates | For Parents & Caregivers

Your instinct, our support

Here’s what to expect

When you sign up for the Strong Start Club, we’ll email you RSV health reminders and helpful tips and information based on your little one’s age and stage. You can also choose to get text messages for key moments, like upcoming well visits so nothing slips through the cracks.

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By checking this box, I consent that Sanofi and its service providers collect and use the information I provide to be contacted by email and receive information about Beyfortus and RSV.

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IMPORTANT SAFETY INFORMATION

INDICATION

IMPORTANT SAFETY INFORMATION

Your child should not take Beyfortus if your child has a history of serious allergic reactions to nirsevimab-alip or any of the ingredients in Beyfortus.

Before your child receives Beyfortus, tell your healthcare provider about all of your child’s medical conditions, including if your child:

has ever had a reaction to Beyfortus.

has bleeding or bruising problems. If your child has a problem with bleeding or bruises easily, an injection could cause a problem.

Tell your healthcare provider about all the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Your infant should not receive a medicine called palivizumab if they have already received Beyfortus in the same RSV season.

Serious allergic reactions have happened with Beyfortus. Get medical help right away if your child has any of the following signs or symptoms of a serious allergic reaction:

swelling of the face, mouth, or tongue

difficulty swallowing or breathing

unresponsiveness

bluish color of skin, lips, or under fingernails

muscle weakness

severe rash, hives, or itching

The most common side effects of Beyfortus include rash and pain, swelling, or hardness at the site of your child’s injection. These are not all the possible side effects of Beyfortus. Call your healthcare provider if you have questions about side effects.

Please see full Prescribing Information, including Patient Information, for more details.

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INDICATION

Beyfortus is a prescription medicine used to help prevent a serious lung disease caused by Respiratory Syncytial Virus (RSV) in:

Newborns and babies under 1 year of age born during or entering their first RSV season.

Children up to 24 months of age who remain at risk of severe RSV disease through their second RSV season.

MAT-US-2311219-v4.0-10/2025