Patent ID: 11872320
Assignee: HISAMITSU PHARMACEUTICAL CO., INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A method for treating osteoarthritis, the method comprising: a step of administering a patch to a patient,
wherein the patch comprises a backing layer and an adhesive layer laminated on the backing layer,
wherein the adhesive layer comprises an adhesive base, diclofenac sodium, dimethyl sulfoxide, and one or more organic acids,
wherein a content of the organic acid is 6 mass % to 8 mass % with respect to a total mass of the adhesive layer,
wherein the patch is applied to an affected part of the patient once a day,
wherein a dose of diclofenac sodium per administration is 70 mg to 150 mg, and
wherein the patch comprises a styrene-isoprene-styrene block copolymer and polyisobutylene as the adhesive base, and wherein the patch shows an amount of diclofenac released of 13 mg to 16 mg during a single dose and a release rate of diclofenac of 8.6% to 10.7%.