What is the meaning of vp16, the chemotherapy agent etoposide?

Code designation. Vp-16 is the abbreviation of its code designation from the manufacturing company - bristol; - code designation vp-16-213, abbreviated as vp-16. No it is not named after somebody/chemist etc.
WIKIPEDIA. Wikipedia comes through again! the name vp-16 likely comes from a compounding of the last name of the chemists who performed early work on the drug (von wartburg and von kuhn) and podophyllotoxin.