What side effects may I notice from receiving Dimethyl fumarate?

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
-fever or chills, sore throat
-signs and symptoms of liver injury like dark yellow or brown urine; general ill feeling or flu-like symptoms; light-colored stools; loss of appetite; nausea; right upper belly pain; unusually weak or tired; yellowing of the eyes or skin
-signs and symptoms of a serious brain infection like changes in vision, confusion, weakness on one side of the body, loss of balance or coordination, loss of memory, or changes in personality

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

-diarrhea
-facial flushing
-nausea
-stomach pain
-upset stomach

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