Patent ID: 8568770

Claim:
A 5-methyl-1-phenyl-2-(1H)-pyridone-containing adhesive preparation including an active medicinal ingredient-containing layer, wherein: the active medicinal ingredient-containing layer contains a lipophilic base, a dissolving agent, and 5-methyl-1-phenyl-2-(1H)-pyridone or a medically acceptable salt thereof; the lipophilic base comprises: (i) at least one lipophilic polymer selected from the group consisting of styrene/isoprene/styrene block copolymers, styrene/butadiene block copolymers, polyisobutylene, polyisoprene, and polybutene; (ii) at least one plasticizer selected from the group consisting of liquid paraffin, vegetable oils, animal oils, vaseline, lanolin, and higher aliphatic esters; and (iii) at least one tackifier selected from the group consisting of petroleum resins, rosin-based resins, hydrogenated rosins, rosin esters, terpene resins, modified terpene resins, aromatic hydrocarbon resins, and aliphatic hydrocarbon resins; and the dissolving agent is selected from the group consisting of butylene glycol, polyethylene glycol, N-methyl-pyrrolidone, propylene carbonate, isopropyl myristate, crotamiton, and diisopropyl adipate.