O‐demethylation and N4‐acetylation of sulphadimethoxine by the turtlePseudemys scripta elegans

Abstract
After an oral dose of 350 mg of sulphadimethoxine, the turtle Pseudemys scripta elegans O‐dealkylates sulphadimethoxine at the 2‐ and 6‐position at 38% and 19% respectively, the 2‐position being favoured. Acetylation ofsulphadimethoxine and its hydroxy metabolites occurs for 57.4%.