Specific classification of the chemotherapeutic agent, Vincristine (Oncovin) is:
A. Hormone modulator
B. Mitotic inhibitor
C. Antineoplastic antibiotic
D. Antimetabolite
Correct Answer: B. Mitotic inhibitor
Option B: Vincristine is a mitotic inhibitor that inhibits mitosis or cell division. Other examples of mitotic inhibitors are paclitaxel, docetaxel, and vinblastine.
Option A: Hormone modulators work by interfering with the activity of hormones. A good example are the selective estrogen receptor modulators (Tamoxifen, Raloxifene, and Ospemifene).
Option C: Antineoplastic antibiotic (e.g., doxorubicin, mitoxantrone, and bleomycin) blocks cell growth by interfering with DNA.
Option D: Antimetabolites (such as Sulfanilamides) work by acting as false metabolites that prevent DNA synthesis.