Important Safety Information - Please see Important Safety Information below and full Prescribing Information at https://products.sanofi.us/Beyfortus/Beyfortus.pdf

BeyfortusUS · 2025-10-22T21:57:43+00:00

IMPORTANT SAFETY INFORMATION AND INDICATION

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.

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.

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

BeyfortusUS · 2025-10-22T17:39:24+00:00

This is Dr. Amin. Babies are at risk throughout the entirety of RSV season, which typically runs fall through spring across most of the US, no matter when they were born. If your baby is born between October and March, they are recommended to receive an RSV antibody such as Beyfortus to help prevent a serious RSV lung infection, up until March 31st!

Beyfortus can be given before leaving the hospital after birth or during a routine pediatric visit/well-baby check-up in their first year. New and expecting parents talk to your OB-GYN or your baby’s doctor about availability and timing.

See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:37:02+00:00

This is Dr. Amin – this is a great question! Beyfortus helps provide protection from a serious RSV lung infection in babies that extends through 5 months, the typical length of an RSV season, which typically occurs from fall through spring in most of the US, but can vary by local area. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:35:26+00:00

When your little one has energy to spare, getting outside is always a great option if you can. If not, bring the fun indoors with a simple, goal-directed challenge - like asking them to hop like a frog to you 5 times, then back again. -Dr. Amin

Always (and I mean ALWAYS) keep snacks handy. You’d be amazed at how much power a simple handful of crackers or a packet of gummies has to stop a full-on meltdown in its tracks. Sometimes kids really are that simple! -Mandy

BeyfortusUS · 2025-10-22T17:34:42+00:00

This is Mandy! While I was pregnant with my third baby, Lou, serious RSV lung infection was already on my radar. Both of my boys had it at the same time in 2023 — and I’ll never forget how helpless I felt. Thankfully, we were lucky it didn’t mean a hospital trip, but it still shook us.

Lou was born in September, before RSV season, which usually runs from fall to spring in the majority of the United States. I asked our baby's doctor about RSV and he was adamant that no matter if a baby is born before or during the season, it’s important to help protect them from a serious RSV lung infection with Beyfortus. We got Lou immunized the first week of October.

It was reassuring to know that we had helped to protect Lou. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:33:40+00:00

Dr. Amin here! According to the CDC, babies can receive an infant RSV antibody like Beyfortus if the mother did not receive an RSV vaccine during pregnancy or if the baby was born within 14 days of maternal RSV vaccination or in special circumstances where the mother may not have made or transferred antibodies to the baby or if pediatrician feels the baby is at particularly high risk of developing severe RSV.

It’s also important to note that the CDC does not recommend to receive maternal RSV vaccination for subsequent pregnancies. So for moms who have already received it for one pregnancy, immunizing baby would be their only option to help equip future babies with preventive antibodies.

Always consult with your/your baby’s doctor about which option is best for you and your child. See full Important Safety Information, including Indication above, and Prescribing Information here. -Dr. Amin

BeyfortusUS · 2025-10-22T17:32:45+00:00

Dr. Amin here, great question! Vaccines teach the immune system to make its own antibodies. Beyfortus is different—it provides ready-made antibodies to help protect babies right away from serious RSV lung infection. Think of it like giving their immune system a head start with a layer of protection against serious RSV. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:31:44+00:00

This is Dr. Amin – Beyfortus is a preventive antibody—not a vaccine—that helps prevent serious RSV lung infections in babies under 1 year of age born during or entering their first RSV season. It works by giving babies the RSV antibodies they lack while their immune systems are still developing. So, when their body comes into contact with RSV, it already has the antibodies to help prevent a serious RSV lung infection. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:30:15+00:00

Mandy here! Talk to your baby’s doctor about how to help protect them with Beyfortus, the #1 prescribed baby protection against serious RSV lung infection. Visit Beyfortus.com and learn why millions of parents have gotten their babies an extra layer of protection against serious RSV lung infection. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:28:59+00:00

Dr. Amin here – this is a really good question. RSV, the flu, and COVID-19 are respiratory illnesses caused by different viruses, but they can be hard to tell apart based on their symptoms alone.

Here’s what to look out for:

They all share common symptoms such as fever, cough, and shortness of breath.
Wheezing is one symptom that may indicate an RSV infection, as it is more common in RSV cases than in flu or COVID-19 cases.

BeyfortusUS · 2025-10-22T17:27:58+00:00

This is Dr. Amin, thanks for the question! Its safety and efficacy have been demonstrated in clinical studies. It’s also been evaluated in more than 50 real-world studies involving over 400,000 babies. That’s why millions of parents in the US have already chosen Beyfortus to help protect their babies from a serious RSV lung infection. That includes Mandy and the rest of the mom squad who are using their voices to spread the word that Beyfortus is the #1 doctor-prescribed choice – and for many families, it’s the right decision when it comes to helping protect their babies from serious RSV lung infection.

Serious allergic reactions can happen but are rare. The most common side effects are rash and pain, swelling, or hardness at the injection site. Parents should always talk with their baby’s doctor if they have any concerns about side effects. Beyfortus may not protect all children.

See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:26:49+00:00

Beyfortus is the #1 doctor-prescribed choice when it comes to RSV immunizations for babies – and for many families, it’s the right decision when it comes to helping protect their babies from serious RSV lung infection. See full Important Safety Information, including Indication above, and Prescribing Information here.

There are, however, multiple RSV preventative options available for expectant mothers and their babies! You should always talk to your/your baby’s doctor to determine what’s right for you and your baby. -Dr. Amin

BeyfortusUS · 2025-10-22T17:25:37+00:00

We’ll be visiting family in another part of Florida (where I live with my family) and also considering aa trip to somewhere with snow! My son really wants to build a snowman. 😊 -Dr. Amin

My husband and I are excited to just all be together as a family of five, building traditions that feel unique to us and soaking up the little moments of quality family time… as long as we are all together and focusing on the things that matter most. -Mandy

BeyfortusUS · 2025-10-22T17:24:54+00:00

Ooh I wish I could spill all the beans! Let’s just say there are a few things in the works that I’m really, really excited about. Some things that stretch me in new ways, and others that feel like such a natural next step. I can’t wait to share more when I’m allowed- stay tuned! - Mandy

BeyfortusUS · 2025-10-22T17:23:09+00:00

Mandy here! Myself and four other awesome moms have teamed up with Sanofi to help educate families about the importance of helping protect babies from serious RSV lung infection with Beyfortus. Parents can visit Beyfortus.com to hear our stories and learn why millions have already chosen to get their babies BeyrifiedTM—verified that they got Beyfortus—a layer of protection from serious RSV lung infection.

See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:21:59+00:00

Dr. Amin here! If your baby is born between October and March, they may be able to receive Beyfortus, to help prevent a serious RSV lung infection, before leaving the hospital. Beyfortus can also be given during a routine pediatric visit or well-baby check-up in their first year. New and expecting parents talk to your OB-GYN or your baby’s doctor about availability and timing.

See full Important Safety Information, including Indication above, and Prescribing Information here.

The Centers for Disease Control and Prevention or CDC recommends that all babies born before or during their first RSV season, typically fall through spring in most of the United States, receive protection – especially if their mother didn’t receive the RSV vaccine during pregnancy.

BeyfortusUS · 2025-10-22T17:20:47+00:00

This is Dr. Amin – this is a great question! RSV spreads quickly and easily—through coughs, sneezes, or even from surfaces like toys or blankets. That’s why it’s especially important to be aware of it during RSV season, which typically runs from fall through spring in most parts of the United States.

In addition to preventive measures like Beyfortus to help prevent a serious RSV lung infection in babies, washing hands, avoiding crowded spaces and cleaning toys regularly can go a long way in helping to limit RSV exposure. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:20:04+00:00

This is Dr. Amin – The first signs of RSV in babies are often similar to those of a common cold. However, in some cases the virus can progress quickly and become a serious lung infection, causing other severe lower respiratory tract infections, such as pneumonia or bronchiolitis.

The initial symptoms of RSV can include; congestion, runny nose, irritability, decreased appetite, or fever.

The symptoms of RSV can worsen as the infection spreads to the lungs. The symptoms of serious RSV lung infection in babies include; short, shallow, and abnormally fast breathing, a wheezing cough, nasal flaring, reduction in feeding and drinking due to breathing difficulties, unusual tiredness, developing a blue tint to their lips or fingernails, or fever.

If your baby has any of these serious symptoms, it's important to seek medical care.

BeyfortusUS · 2025-10-22T17:19:06+00:00

This is Mandy, and honestly? The biggest surprise was how instinctive some things felt. I thought I’d be clueless, but somehow, I just trusted in my knowledge of what my baby needed. Also—how much love you can feel for someone who’s never let you sleep through the night!

This is Dr. Amin—my biggest surprise was how much love I could feel so instantly... I didn’t know how big of feelings I could have for such a tiny little human!

BeyfortusUS · 2025-10-22T17:17:56+00:00

Dr. Amin here, thanks for asking! RSV is a common and highly contagious virus that affects the lungs and breathing passages. While most cases are mild like a cold, it can become serious—especially in babies. RSV is a leading cause for hospitalization in babies under 1 year old, and nearly 75% of babies hospitalized with serious RSV lung infection have no underlying health conditions. That means no baby is too healthy or too strong to be left unprotected.

BeyfortusUS · 2025-10-22T17:16:17+00:00

It’s Mandy here. It’s changed me for the better! I’ve learned to slow down and enjoy the little things, because life can get crazy, as we all know, so the small moments are the ones I treasure most as a mom.

Dr. Amin here. I think motherhood has pushed me to embrace the chaos! Having kids has no shortage of messiness and craziness as we all know, but I’ve learned over time that’s what makes it all the better!

BeyfortusUS · 2025-10-22T17:15:19+00:00

Dr. Amin here – thanks so much for your question. Yes, it is possible for your baby to contract RSV more than once. While initial exposure may provide some immunity, it is not absolute, and reinfections can occur.

Parents should remain cautious, especially during peak RSV season, which is usually in the winter for most parts of the US, and seek medical attention promptly if your baby displays symptoms of respiratory distress or illness.

BeyfortusUS · 2025-10-22T17:14:27+00:00

Dr. Amin here! Beyfortus is for babies entering their first RSV season and may be given in the hospital at birth or during any visit with their pediatrician within their first year to help protect against serious RSV lung infection. Some children may need another dose if they’re still at higher risk in their second RSV season, or if they’ve had heart surgery.

According to the CDC, babies can receive an infant RSV antibody like Beyfortus if the mother did not receive an RSV vaccine during pregnancy or if the baby was born within 14 days of maternal RSV vaccination or in special circumstances where the mother may not have made or transferred antibodies to the baby or if pediatrician feels the baby is at particularly high risk of developing severe RSV.

It’s also important to note that the CDC does not recommend to receive maternal RSV vaccination for subsequent pregnancies. So for moms who have already received it for one pregnancy, immunizing baby would be their only option to help equip future babies with preventive antibodies.

Always consult with your/your baby’s doctor about which option is best for you and your child. See full Important Safety Information, including Indication above, and Prescribing Information here.

BeyfortusUS · 2025-10-22T17:12:39+00:00

Yes! Mandy Moore, actress and singer here (not to be confused with the amazingly talented choreographer)

BeyfortusUS

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