What side effects may I notice from receiving Topamax?

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
-blood in the urine
-changes in vision
-confusion
-loss of memory
-pain in lower back or side
-pain when urinating
-redness, blistering, peeling or loosening of the skin, including inside the mouth
-signs and symptoms of bleeding such as bloody or black, tarry stools; red or dark brown urine; spitting up blood or brown material that looks like coffee grounds; red spots on the skin; unusual bruising or bleeding from the eyes, gums, or nose
-signs and symptoms of increased acid in the body like breathing fast; fast heartbeat; headache; confusion; unusually weak or tired; nausea, vomiting
-suicidal thoughts, mood changes
-trouble speaking or understanding
-unusual sweating
-unusually weak or tired

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

-dizziness
-drowsiness
-fever
-loss of appetite
-nausea, vomiting
-pain, tingling, numbness in the hands or feet
-stomach pain
-tiredness
-upset stomach

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