Get emergency medical help if you have signs of an allergic reaction to Calquence: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
unusual bleeding (nose, mouth, vagina, or rectum), or any bleeding that will not stop;
signs of bleeding inside your body - dizziness, weakness, confusion, problems with speech, prolonged headache, black or bloody stools, pink or brown urine, or coughing up blood or vomit that looks like coffee grounds;
heart rhythm problems - chest pain, shortness of breath, pounding heartbeats or fluttering in your chest, feeling light-headed;
low red blood cells (anemia) - pale skin, unusual tiredness, feeling light-headed or short of breath, cold hands and feet;
signs of infection - fever, chills, tiredness, flu-like symptoms, cough with mucus, chest pain, trouble breathing; or
signs of a serious brain infection - any change in your mental state, decreased vision, weakness on one side of your body, or problems with walking (may start gradually and get worse quickly).
Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.
Common Calquence side effects may include:
bruising;
headache;
muscle pain;
diarrhea; or
feeling tired.
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.
 Calquence side effects (more detail)
