Patent ID: 7015241

Claim:
A method for stimulating appetite, comprising administering to a subject in need of appetite stimulation, an effective amount of a sulfonamide derivative or sulfonic acid ester derivative represented by formula (I): or a pharmacologically acceptable salt thereof, or a hydrate thereof, wherein ring A represents a monocyclic or bicyclic aromatic ring which is optionally substituted, ring B represents a 6-membered unsaturated hydrocarbon ring or a 6-membered unsaturated heterocyclic ring containing one nitrogen atom as a heteroatom, wherein the hydrocarbon ring or the heterocyclic ring is optionally substituted, ring C represents a 5-membered heterocyclic ring containing one or two nitrogen atoms, wherein ring C is optionally substituted, W represents a single bond or —CH═CH—, X represents —N(R 1 )— or an oxygen atom, Y represents a carbon atom or a nitrogen atom, Z represents —N(R 2 )— or a nitrogen atom, and R 1 and R 2 may be identical or different and each represents a hydrogen atom or a lower alkyl group.