EP2823815A1 — Non-aqueous patch
Assigned to Oishi Koseido Co Ltd · Expires 2015-01-14 · 11y expired
What this patent protects
If lidocaine is composed of non-aqueous patch, the adhesive power of the preparation tends to get lower, as the composition amount of lidocaine is higher. It is popular to solve lidocaine in dissolving agent in order to compose lidocaine in patch and release effective amount into…
USPTO Abstract
If lidocaine is composed of non-aqueous patch, the adhesive power of the preparation tends to get lower, as the composition amount of lidocaine is higher. It is popular to solve lidocaine in dissolving agent in order to compose lidocaine in patch and release effective amount into skin. However, if the amount of dissolving agent gets higher, the adhesive power gets extremely lower, so that an long-time attachment is difficult. For solving this problem, a non-aqueous patch is provided comprising lidocaine and/or its reactant, and a dissolving agent which are contained in a base of plaster, the plaster being held by a support, of which strength of 50% stretched to longitudinal direction is less than 2,000g/50mm and of biaxially-oriented stretch cloth.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
Track this patent
Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.