Wiktionary
codoxime
n. An opiate analogue, derived from hydrocodone, with antitussive effects.
Wikipedia
Codoxime
Codoxime (Codossima) is an opiate analogue that is a derivative of hydrocodone, where the 6- ketone group has been replaced by carboxymethyloxime. It has primarily antitussive effects and was found to have moderate potential to cause dependence in animal studies.