Drug-containing composition

Abstract

It is an object of the present invention to provide a drug-containing composition capable of stably retaining a water-soluble compound without the loss of drug efficacy of a pharmaceutically active ingredient and thus preventing the compound from diffusing in the body, which is unlikely to cause disassociation at a non-target site and thus achieves disassociation/sustained release/delivery specifically at a target site. The present invention provides a composition which is composed of: (a) at least one a water-soluble compound; and (b) a carrier comprising a polymer having binding affinity with the water-soluble compound.

Dependencies are inferred from the claim text.