NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,034 terms related to cancer and medicine.
- porfimer sodium
- listen (POR-fih-mer SOH-dee-um)
- A drug used to treat some types of cancer. When absorbed by cancer cells and exposed to light, porfimer sodium becomes active and kills the cancer cells. It is a type of photodynamic therapy agent. Also called Photofrin.