the gastrointestinal ( gi ) absorption in mice of the anticholinergic quaternary ammonium compound emepronium , assessed by the urinary excretion of radioactivity and unchanged drug , increased from 1 % to 7 % and from 0.5 % to 5 % , respectively , in the dose range 0.1 to 40 mg/kg , whereafter a plateau was reached .
C0578399
quaternary
C0013954
emepronium