What side effects may I notice from receiving HERCEPTIN HYLECTA?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-chest pain or palpitations
-cough
-fever
-general ill feeling or flu-like symptoms
-signs of worsening heart failure like breathing problems; swelling in your legs and feet

Side effects that usually do not require medical attention (report these to your doctor or health care professional if they continue or are bothersome):

-bone pain
-changes in taste
-diarrhea
-joint pain
-nausea/vomiting
-unusually weak or tired
-weight loss

This list may not describe all possible side effects for HERCEPTIN HYLECTA. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.