The present invention provides methods for preparing pharmaceutical
resin-complexed granules which are taste-masked or capable of providing
modified release of a water-soluble drug comprising the steps of (a)
dissolving a water-soluble drug in water to form a solution; and (b)
granulating the drug solution from step (a) in the presence of a resin
capable of complexing with the drug to form a drug-resin complex. The
drug:resin ratio in step (b) is from about 1:10 to about 10:1,
respectively, on a weight/weight basis and the water:resin ratio in step
(b) is from about 1:1 to about 5:1, respectively, on a weight/weight
basis.