Classification of antineoplastics is difficult because:

Question

1. The drugs kill cancer cells by different mechanisms and have characteristics from more than one class.
2. The drugs cannot always kill the cancer cells.
3. The drugs only have characteristics from one class, even though they kill by different mechanisms.
4. The drugs have various adverse effects.

Answer 1

Correct Answer: 1
Rationale 1: These are the reasons classification is so difficult.
Rationale 2: The drugs can kill cancer cells.
Rationale 3: They kill by different mechanisms and have characteristics from more than one class.
Rationale 4: This does not affect classification, and they often do have similar adverse effects.
Global Rationale: Classification of the antineoplastics is difficult because some of these drugs kill cancer cells by multiple mechanisms and have characteristics from more than one class. They often have similar adverse effects, but this does not affect classification.