Fluorouracil is used in the treatment of cancer.
How Fluorouracil Works Fluorouracil is an anticancer medication that interferes with the growth of genetic material (DNA and RNA) in cancer cells. This action slows the growth of cancer cells and ultimately leads to their death.
Common side effects of Fluorouracil include nausea, vomiting, hair loss, diarrhea, bronchospasm, infection, myelosuppression, agranulocytosis (a deficiency of granulocytes in the blood), general discomfort, itching, skin exfoliation, anemia (a low number of red blood cells), febrile neutropenia, angina (heart-related chest pain), ECG changes, and decreased immunity.