The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Respiratory tract infection (33%)
- Headache (32%)
- Urinary tract infection (10%)
Less Common Side Effects
- Tingling sensation
- Muscle pain
Vyvgart serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Allergic reaction: swelling of the face or throat, trouble breathing, rash, fainting
Source: Prescribing information
The following Vyvgart side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions or angioedema—skin rash, itching or hives, swelling of the face, eyes, lips, tongue, arms, or legs, trouble swallowing or breathing
- Infection—fever, chills, cough, sore throat, wounds that don't heal, pain or trouble when passing urine, general feeling of discomfort or being unwell
- Infusion reactions—chest pain, shortness of breath or trouble breathing, feeling faint or lightheaded
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Burning or tingling sensation in hands or feet
- Cough
- Headache
- Muscle pain
- Nausea
- Runny or stuffy nose
- Sore throat


