Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
You may get infections more easily, even serious or fatal infections. Call your doctor right away if you have signs of infection such as:
fever, chills, weakness, feeling light-headed or very tired;
mouth sores, skin sores;
easy bruising, unusual bleeding;
pain or burning when you urinate, blood in your urine or stools;
pale skin, cold hands and feet
weight loss; or
cough, wheezing, shortness of breath.
Your cancer treatments may be delayed if you have certain side effects.
Some people who take olaparib with a gonadotropin-releasing hormone (GnRH) medicine may develop a blood clot in the leg or in the lung. Call your doctor if you have pain or swelling in your arm or leg, shortness of breath, chest pain, rapid breathing, or fast heartbeats.
Common side effects may include:
low blood cell counts;
pain and burning when you urinate, painful urination;
nausea, vomiting, upper stomach pain, diarrhea;
heartburn, indigestion, loss of appetite;
dizziness, feeling weak or tired;
headache;
cough, shortness of breath; or
altered sense of taste.
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.
 Olaparib side effects (more detail)
