GB9202464D0 — Composition for nasal administration
Assigned to Kyowa Kirin Services Ltd · Expires 1992-03-18 · 34y expired
What this patent protects
PCT No. PCT/GB93/00228 Sec. 371 Date Jul. 12, 1994 Sec. 102(e) Date Jul. 12, 1994 PCT Filed Feb. 4, 1993 PCT Pub. No. WO93/15737 PCT Pub. Date Aug. 19, 1993A composition for nasal administration of polar metabolites of opioid analgesics comprises a polar metabolite of an opioid a…
USPTO Abstract
PCT No. PCT/GB93/00228 Sec. 371 Date Jul. 12, 1994 Sec. 102(e) Date Jul. 12, 1994 PCT Filed Feb. 4, 1993 PCT Pub. No. WO93/15737 PCT Pub. Date Aug. 19, 1993A composition for nasal administration of polar metabolites of opioid analgesics comprises a polar metabolite of an opioid analgesic and an absorption promoting agent. Preferred metabolites morphine-6-glucuronide and morphine-6-sulphate. A preferred absorption promoting agent is chitosan but other suitable agents include cationic polymers, bioadhesive agents, surface active agents, fatty acids, chelating agents, mucolytic agents, cyclodextrin, microsphere preparations or combinations thereof.
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.
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