Are you tired of high medication costs? Our service offers unbeatable savings on your BEYFORTUS prescription medication. We provide a range of solutions to help you save up to 100% on your medication costs*. Whether you are insured, uninsured, underinsured, or simply looking to reduce your out-of-pocket expenses, we've got you covered.

Manufactured by sanofi-aventis U.S.

*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.

This content is intended for US audiences only

BEYFORTUS cost saving options available to you

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    Drug Coupons

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    Patient Assistance Programs

    Obtain your BEYFORTUS at no cost. Suitable for insured, underinsured and uninsured individuals

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BEYFORTUS Uses, Side Effects, Interactions, Warnings & Dosing



BEYFORTUS is the brand name for nirsevimab-alip IM injection.

What dosages is BEYFORTUS available in?

What dosages is BEYFORTUS available in?

BEYFORTUS is available as a 50 mg/0.5 mL in a single-dose pre-filled syringe or 100 mg/mL in a single-dose pre-filled syringe.

What is BEYFORTUS used for?

What is BEYFORTUS used for?

BEYFORTUS is a monoclonal antibody that is used for the prevention of respiratory syncytial virus (RSV) in:
Newborns and infants during or entering their first RSV season
Children up to 24 months old at risk for severe RSV illness through their second RSV season

How does BEYFORTUS work?

How does BEYFORTUS work?

BEYFORTUS is an injection of monoclonal antibodies (manmade proteins) which provides protection against the respiratory syncytial virus (RSV). The antibodies attach to the virus and stop it from entering cells and spreading.

How do I take BEYFORTUS?

How do I take BEYFORTUS?

BEYFORTUS is injected into the muscle by a trained healthcare provider.

Newborns and infants born during or entering their first RSV season:

  • Weight less than 5 kg (11 lbs): The typical dose is 50 mg given as one dose
  • Weight 5 kg (11 lbs) and more: The typical dose is 100 mg given as one dose

Children up to 24 months old at risk for severe RSV illness in their second RSV season:

  • The typical dose is 200 mg given as two 100 mg injections in one office visit
Is it safe for me to take BEYFORTUS?

Is it safe for me to take BEYFORTUS?

BEYFORTUS is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. BEYFORTUS is contraindicated in infants and children with a history of serious
hypersensitivity reactions, including anaphylaxis, to nirsevimab-alip or to any of the excipients.

BEYFORTUS Common Side Effects

BEYFORTUS Common Side Effects

Common side effects of BEYFORTUS:

  • Rash
  • Injection site reaction (e.g., pain, hard lump, swelling)
BEYFORTUS Serious Side Effects

BEYFORTUS Serious Side Effects

Serious side effects are rare with BEYFORTUS. Contact your healthcare provider immediately if you experience any of the following.

  • Severe allergic reaction: rash, trouble breathing, swelling in the face or throat
Effects of other drugs, drug classes and over-the-counter products on BEYFORTUS

Effects of other drugs, drug classes and over-the-counter products on BEYFORTUS

  • There are no major drug interactions listed for BEYFORTUS. However, always let your physician and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking
Who makes BEYFORTUS?

Who makes BEYFORTUS?

sanofi-aventis U.S.

Is BEYFORTUS safe in pregnancy?

Is BEYFORTUS safe in pregnancy?

BEYFORTUS is not indicated for use in females of reproductive potential.


What to do if you missed your BEYFORTUS dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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Medical Disclaimer

NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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