Fulvestrant Side Effects and Warnings

What are the precautions when taking this medicine?

• Check medicines with healthcare provider. This medicine may not mix well with other medicines.

• Use birth control that you can trust to prevent pregnancy while taking this medicine.

What are some possible side effects of this medicine?

• Flushing. Wearing layers of clothes or summer clothes and cool environment may help. This usually improves in a few weeks.

• Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.

• Headache.

• Back pain.

• Belly pain.

• Diarrhea.

• Constipation.

• Irritation or swelling at the injection site.

• Change in sexual ability or desire. This is usually reversible.

Reasons to call healthcare provider immediately

• If you suspect an overdose, call your local poison control center or emergency department immediately.

• Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.

• Weakness, numbness, or tingling.

• Severe nausea or vomiting.

• Swelling or pain of leg or arm.

• A lump in the breast or breast tenderness.

• For females, menstrual changes. These include lots of bleeding, spotting, or bleeding between cycles.

• Any rash.

• No improvement in condition or feeling worse.