Oxaliplatin is a medication used in the treatment of various types of cancer, including colorectal cancer and certain types of stomach cancer. It belongs to a class of drugs called platinum-based chemotherapy agents.

Oxaliplatin works by interfering with the DNA synthesis and function in cancer cells, ultimately leading to their destruction. Specifically, it forms cross-links in DNA, which disrupts the replication and transcription processes necessary for cancer cell growth and proliferation.