Wiktionary
demethylated
That has been subjected to demethylation v
(en-past of: demethylate)
Usage examples of "demethylated".
Toward the end of the day of the second syrupless afternoon (the day of the seizure) Poor Tony Krause began to Withdraw from the cough syrup's alcohol and codeine and demethylated morphine, now, as well as from the original heroin, yielding a set of sensations for which not even his recent experience had prepared him (the alcohol-Withdrawal especially).