仅用于工业应用或科学研究，不可用于人类或动物的临床诊断或治疗，非药用.5-FU （5-Fluorouracil） is a DNA/RNA synthesis inhibitor, which interrupts nucleotide synthetic by inhibiting thymidylate synthase （TS） in tumor cells. Fluorouracil induces apoptosis and can be used in the treatment of HIV.