Viscosity studies of some narcotic-analgesic drugs in aqueous-alcoholic mixtures at 25 °C

It can be inferred from these studies that all the drug cations can be regarded as structure-makers/promoters due to hydrophobic hydration of the drug molecules. Furthermore, the results are correlated to understand the solution behavior of drugs in aqueous alcoholic systems as a function of the nature of alcohols and different types of solutes.