5-FU (Fluorouracil) is a chemotherapy drugused forcolon, breast, and skin cancers.
It is apyrimidine analogthatprevents cancer cell DNA replication.
Why Other Options Are Incorrect:
A. Fluocinonide?❌Topical corticosteroid for skin conditions.
B. Fluoxetine (Prozac)?❌SSRI antidepressant.
C. Fluocinolone?❌Topical corticosteroid.
????Reference:National Cancer Institute Chemotherapy Guide, PTCB Oncology Medications.
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