Get emergency medical help if you have signs of an allergic reaction: hives; chest pain, wheezing, difficult breathing; feeling light-headed; swelling of your face, lips, tongue, or throat.
Also seek emergency medical attention if you have symptoms of a spinal blood clot: back pain, numbness or muscle weakness in your lower body, or loss of bladder or bowel control.
Call your doctor at once if you have:
easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), bleeding from wounds or needle injections, any bleeding that will not stop;
heavy menstrual periods;
headache, dizziness, weakness, feeling like you might pass out;
urine that looks red, pink, or brown; or
black or bloody stools, coughing up blood or vomit that looks like coffee grounds.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Apixaban side effects (more detail)
