Vyvgart Hytrulo

Efgartigimod alfa is used to treat a certain muscle condition (generalized myasthenia gravis). It may help to improve symptoms of muscle weakness. Hyaluronidase is used to help the body absorb efgartigimod alfa, which helps it work better.

This medication is given by injection under the skin by a health care professional. It is given as directed by your doctor in the abdomen area, usually once weekly for 4 weeks. A healthcare professional should monitor you after each injection for at least 30 minutes to make sure you don't get an allergic reaction. Additional treatment cycles are given based on your medical condition and response to treatment.

Tell your doctor if your condition does not get better or if it gets worse.

Headache or injection site reactions (such as redness, pain, bruising, itching, swelling) may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

This medication may lower your ability to fight infections. This may make you more likely to get a serious infection or make any infection you have worse. Tell your doctor right away if you have any signs of infection (such as sore throat that doesn't go away, fever, chills, cough, painful/burning urination).

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before using this product, tell your doctor or pharmacist if you are allergic to efgartigimod alfa or hyaluronidase; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of current/recent infection.

Efgartigimod alfa can make you more likely to get infections or may make current infections worse. Stay away from anyone who has an infection that may easily spread (such as chickenpox, COVID-19, measles, flu). Talk to your doctor if you have been exposed to an infection or for more details.

Tell your health care professional that you are using this product before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Mothers who have used this medication during pregnancy should ask a doctor about immunizations/vaccinations for their newborn babies.

It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.

Not applicable. This medication is given in a clinic and will not be stored at home.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.

It is important to get each dose of this medication as scheduled. If you miss a dose, ask your doctor or pharmacist right away for a new dosing schedule.

Lab and/or medical tests (such as complete blood count) should be done while you are using this medication. Keep all medical and lab appointments. Consult your doctor for more details.