To ensure safe oral administration, pediatric patients require an appropriate dosage form to be swallowed without relevant difficulties. Ex tempore hydrated powders, forming viscous pulp “on a
spoon”, have recently gained much interest as pediatric formulations. The aim of this study was to evaluate the viscosity-increasing substances and disintegrants, alone or in mixtures, as
excipients suitable for preparing such formulations, with candesartan and valsartan chosen as model active substances.