Respiratory syncytial virus (RSV) mRNA vaccine

Generic name: respiratory syncytial virus (RSV) mRNA vaccine (none)
Brand name: Mresvia Prefilled Syringe (cvx 326)
Dosage form: intramuscular suspension (preservative-free)
Drug class: Viral vaccines

Medically reviewed by Drugs.com on Jul 16, 2024. Written by Cerner Multum.

What is respiratory syncytial virus mRNA vaccine?

Respiratory syncytial virus (RSV) is a common cause of respiratory disease. The virus is highly contagious and usually affects the lungs and airways. For most people, infections can feel like a common cold, but for some, the virus is potentially life-threatening.

Respiratory syncytial virus mRNA vaccine is used to prevent lung disease caused by respiratory syncytial virus in adults at least 60 years old.

Respiratory syncytial virus mRNA vaccine does not contain RSV and cannot give you lung disease.

Like any vaccine, the respiratory syncytial virus mRNA vaccine may not provide protection from disease in every person.

This vaccine side effects

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

The vaccination provider may want to watch you for a short time after the injection to make sure you do not have an allergic reaction or faint. You will be treated quickly if there is a reaction right after receiving the vaccine.

Becoming infected with RSV is much more dangerous to your health than receiving this vaccine.

Respiratory syncytial virus (RSV) mRNA vaccine may cause serious side effects. Call your doctor at once if you have:

• fast heartbeats;

• nausea, vomiting, dizziness, weakness;

• fever; or

• loss of movement in your face.

Common side effects of respiratory syncytial virus (RSV) mRNA vaccine may include:

• pain, bruising, swelling, irritation, or tenderness in the armpit of the arm where the vaccine was injected;

• headache;

• joint or muscle pain;

• feeling very weak or tired; or

• chills.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report vaccine side effects to the US Department of Health and Human Services at 1-800-822-7967.

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Warnings

Becoming infected with respiratory syncytial virus is much more dangerous to your health than receiving this vaccine.

Tell your doctor if you use other medicines or have other medical conditions or allergies.

Before taking this medicine

You should not receive this vaccine if you ever had a life-threatening allergic reaction to any component of this vaccine.

Tell your doctor or vaccination provider if you have or have ever had:

• a weak immune system (caused by disease or by using certain medicine);

• a bleeding disorder or you are taking a blood thinner (warfarin, Coumadin, Jantoven);

• fainting after receiving an injection;

• a severe allergic reaction to any other vaccine;

• if you received any other RSV vaccine in the past;

• fever; or

• any other allergy.

This vaccine is not approved for use by anyone younger than 60 years old. Tell your doctor or vaccination provider if you are pregnant, plan to become pregnant, or are breastfeeding.

How is this vaccine given?

This vaccine is given as an injection (shot) into a muscle. A healthcare provider will give you this injection.

You will be watched for a short time to make sure you do not have an allergic reaction.

Fainting may occur. Use caution to avoid falling or accidental injury.

Respiratory syncytial virus (RSV) mRNA vaccine dosing information

Usual Adult Dose for Vaccination:

60 years and older: 0.5 mL IM as a single dose

Use: For active immunization for the prevention of lower respiratory tract disease caused by RSV

What happens if I miss a dose?

Since this vaccine is given as a one time injection, you are not likely to be on a dosing schedule.

What happens if I overdose?

An overdose of this vaccine is unlikely to occur.

What should I avoid while receiving this vaccine?

Follow your vaccination provider's instructions about any restrictions on food, beverages, or activity.

What other drugs will affect respiratory syncytial virus mRNA vaccine?

Before receiving this vaccine, tell your vaccination provider about all other vaccines you have recently received.

Other drugs may affect this vaccine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

Further information

• Your vaccination provider, pharmacist, or doctor can provide more information about this vaccine. Additional information is available from your local health department or the Centers for Disease Control and Prevention.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer

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