Derudover omdannes zaleplon af CYP3A4 og danner desethylzaleplon, som yderligere omdannes af aldehydoxidase og danner 5- oxo- desethylzaleplon.
Additionally, zaleplon is metabolised by CYP3A4 to form desethylzaleplon which is further metabolised by aldehyde oxidase to form 5-oxo-desethylzaleplon.