coadministration of famotidine had no effect on the pharmacokinetic variables of theophylline , diazepam , desmethyldiazepam , and phenytoin and no effect on the half-life of antipyrine and aminopyrine or on the prothrombin time ratios associated with warfarin therapy .
C0012010
diazepam
C0011279
desmethyldiazepam