Key facts about Nirsevimab-Alip
What dosages is Nirsevimab-Alip available in?
Nirsevimab-Alip 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 Nirsevimab-Alip used for?
Nirsevimab-Alip 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 Nirsevimab-Alip work?
Nirsevimab-Alip 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 Nirsevimab-Alip?
Nirsevimab-Alip 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 Nirsevimab-Alip?
Nirsevimab-Alip 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. Nirsevimab-Alip is contraindicated in infants and children with a history of serious
hypersensitivity reactions, including anaphylaxis, to Nirsevimab-Alip or to any of the excipients.
Nirsevimab-Alip Common Side Effects
Common side effects of Nirsevimab-Alip:
- Rash
- Injection site reaction (e.g., pain, hard lump, swelling)
Nirsevimab-Alip Serious Side Effects
Serious side effects are rare with Nirsevimab-Alip. 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 Nirsevimab-Alip
- There are no major drug interactions listed for Nirsevimab-Alip. 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 Nirsevimab-Alip?
Various FDA-approved generic manufacturers
Is Nirsevimab-Alip safe in pregnancy?
Nirsevimab-Alip is not indicated for use in females of reproductive potential.













