This document discusses different types of antineoplastic agents (anticancer drugs) used to treat cancer. It describes the goals of cancer treatment and types of agents that work during specific or non-specific phases of the cell cycle. It covers principles of chemotherapy including timing, combination therapy, and drug classifications. Major side effects of chemotherapy like bone marrow depression and nausea/vomiting are outlined. Specific drug classes are then described in more detail, including alkylating agents, antimetabolites, hormonal agents, antibiotics, and radioactive drugs.