Wiktionary
vinorelbine
n. A particular antitumor drug.
Wikipedia
Vinorelbine
Vinorelbine (NVB), sold under the trade name Navelbine, is a chemotherapy medication that is used to treat a number of types of cancer, including breast cancer and non-small cell lung cancer.
It is on the World Health Organization's List of Essential Medicines, the most important medication needed in a basic health system. The wholesale price as of 2014 is between 8.60 and 42.80 USD a vial.