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Vyvgart Hytrulo and argenx logo

Important Safety Information

IMPORTANT SAFETY INFORMATION
Do not take VYVGART HYTRULO if you are allergic to efgartigimod alfa, hyaluronidase, or any of the ingredients in VYVGART HYTRULO. VYVGART HYTRULO can cause serious allergic reactions and a decrease in blood pressure leading to fainting.

Before taking VYVGART HYTRULO, tell your healthcare provider about all of your medical conditions, including if you:

  • have an infection or fever.
  • have recently received or are scheduled to receive any vaccinations.
  • have any history of allergic reactions.
  • have kidney (renal) problems.
  • are pregnant or plan to become pregnant. It is not known whether VYVGART HYTRULO will harm your unborn baby.
    • Pregnancy Exposure Registry. There is a pregnancy exposure registry for women who use VYVGART HYTRULO during pregnancy. The purpose of this registry is to collect information about your health and your baby. Your healthcare provider can enroll you in this registry. You may also enroll yourself or get more information about the registry by calling 1-855-272-6524 or going to VYVGARTPregnancy.com
  • are breastfeeding or plan to breastfeed. It is not known if VYVGART HYTRULO passes into your breast milk.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

VYVGART HYTRULO can cause side effects which can be serious, including:

  • Infection. VYVGART HYTRULO may increase the risk of infection. If you have an active infection, your healthcare provider should delay your treatment with VYVGART HYTRULO until your infection is gone. Tell your healthcare provider right away if you get any of the following signs and symptoms of an infection:
  • fever
  • chills
  • frequent and painful urination
  • cough
  • pain and blockage of nasal passages
  • wheezing
  • shortness of breath
  • sore throat
  • excess phlegm
  • nasal discharge
  • Allergic reactions (hypersensitivity reactions). VYVGART HYTRULO can cause allergic reactions that can be severe. These reactions can happen during, shortly after, or weeks after your VYVGART HYTRULO injection. Tell your healthcare provider or get emergency help right away if you have any of the following symptoms of an allergic reaction:
  • rash
  • swelling of the face, lips, throat, or tongue
  • shortness of breath
  • hives
  • trouble breathing
  • low blood pressure
  • fainting
  • Infusion or injection-related reactions. VYVGART HYTRULO can cause infusion or injection-related reactions. These reactions can happen during or shortly after your VYVGART HYTRULO injection. Tell your healthcare provider if you have any of the following symptoms of an infusion or injection-related reaction:
  • high blood pressure
  • fainting
  • shivering
  • chest stomach or back pain

The most common side effects of VYVGART HYTRULO include respiratory tract infection, headache, urinary tract infection, and injection site reactions.

These are not all the possible side effects of VYVGART HYTRULO. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is VYVGART HYTRULO® (efgartigimod alfa and hyaluronidase-qvfc)?

VYVGART HYTRULO is a prescription medicine used to treat adults with chronic inflammatory demyelinating polyneuropathy (CIDP).

It is not known if VYVGART HYTRULO is safe and effective in children.

Please see the full Prescribing Information and Patient Information for VYVGART HYTRULO.

Dosage forms and strengths:

VYVGART Hytrulo is available as a single-dose subcutaneousinjection containing: 200 mg/mL of efgartigimod alfa and 2,000 U/mL of hyaluronidase per prefilled syringe, or 180 mg/mL of efgartigimod alfa and 2,000 U/mL of hyaluronidase per vial.

VYVGART and VYVGART Hytrulo are registered trademarks of argenx.
For U.S. audiences only.
©2026 argenx US-VYV_HYT-24-00157 V3 02/2026

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Explore VYVGART Hytrulo, by argenx

VYVGART Hytrulo is a prescription medicine for adults with chronic inflammatory demyelinating polyneuropathy (CIDP) and is the first innovation in CIDP treatment in over 30 years.

VYVGART Hytrulo is available for subcutaneous self-injection with a prefilled syringe.

*VYVGART Hytrulo contains efgartigimod alfa and hyaluronidase, and is specifically designed to attach to FcRn receptors. FcRn=neonatal Fc receptor.

About argenx
argenx is a global leader in immunology, developing medicines for people with severe autoimmune diseases, including CIDP. Driven by innovation, we developed the first in-class FcRn blocker, offering solutions for people living with rare autoimmune disease.

An Overview of VYVGART Hytrulo

How VYVGART Hytrulo Is Administered

Patient Support Program

Downloadable Patient Resource

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Ask your neurologist if VYVGART Hytrulo for CIDP is right for you or your loved one.