Vyvgart

Moderate Warnings

Generic: efgartigimod alfa

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Information reviewed July 24, 2026

Rank #152 in US TV Ads
Class: FcRn Antagonist

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What is it for?

An infused treatment for generalized myasthenia gravis, an autoimmune disease that causes muscle weakness, in adults who are anti-AChR antibody positive.

Primary Condition

Generalized myasthenia gravis

How it works

An FcRn antagonist that lowers the harmful antibodies attacking the connection between nerves and muscles.

Common Side Effects

This is not a complete list of side effects. Always consult with a doctor.

  • Respiratory infections
  • Headache
  • Urinary tract infections
  • Increased infection risk

Vyvgart FAQs

What is Vyvgart used for?

Vyvgart (efgartigimod alfa) is a prescription medication used to treat Generalized myasthenia gravis. An infused treatment for generalized myasthenia gravis, an autoimmune disease that causes muscle weakness, in adults who are anti-AChR antibody positive.

How does Vyvgart work?

An FcRn antagonist that lowers the harmful antibodies attacking the connection between nerves and muscles.

What are the common side effects of Vyvgart?

Commonly reported side effects of Vyvgart include Respiratory infections, Headache, Urinary tract infections, and Increased infection risk. This is not a complete list — tell your doctor or pharmacist about any side effects you experience.

Does Vyvgart have any serious warnings?

Vyvgart has notable warnings and precautions. Tell your doctor about your medical history and any other medicines or supplements you take before starting Vyvgart.

What is the generic name for Vyvgart?

The active ingredient in Vyvgart is efgartigimod alfa, which belongs to a class of medicines known as FcRn Antagonist.

Who makes Vyvgart?

Vyvgart is manufactured by argenx. It was first approved in 2021.

How can I save money on Vyvgart?

You may be able to lower the cost of Vyvgart by using a free pharmacy discount card or by comparing prices across pharmacies before you fill your prescription. Savings vary by pharmacy and location.

Common questions about Vyvgart

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Quick Facts

Manufacturer

argenx

Year Approved

2021

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