Fulvestrant

Fulvestrant is used in the treatment of breast cancer.

Fulvestrant blocks the action of estrogen on breast cancer cells. This can lower or stop the growth of some breast cancer cells that need estrogen to grow.

Headache, Vomiting, Nausea, Weakness, Back pain, Bone pain, Constipation, Cough, Decreased appetite, Fatigue, Hot flashes, Injection site pain, Joint pain, Pain in extremity, Musculoskeletal (bone, muscle or joint) pain, Breathlessness, Increased alanine aminotransferase, Increased aspartate aminotransferase