NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,351 terms related to cancer and medicine.

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OPT-80
A substance being studied in the treatment of diarrhea caused by infection with Clostridium difficile (a type of bacteria that can grow without oxygen) in cancer patients. OPT-80 is a type of antibiotic. Also called PAR-101 and tiacumicin B.