NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,990 terms related to cancer and medicine.
- listen (BEH-loh-TEE-kun)
- The active ingredient in a substance being studied in the treatment of small cell lung cancer and other types of cancer. It blocks certain enzymes needed for cell division and DNA repair, and it may kill cancer cells. It is a type of camptothecin analog and a type of topoisomerase inhibitor.