EP1032390A1 — Anaesthetic formulation
Assigned to Darwin Discovery Ltd · Expires 2000-09-06 · 26y expired
What this patent protects
A pharmaceutically acceptable aqueous solution which is isobaric or hyperbaric, and isotonic, with respect to cerebrospinal fluid (CSF), comprises a 1-alkyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide anaesthetic agent such as bupivacaine or levobupivacaine and a saccharide. I…
USPTO Abstract
A pharmaceutically acceptable aqueous solution which is isobaric or hyperbaric, and isotonic, with respect to cerebrospinal fluid (CSF), comprises a 1-alkyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide anaesthetic agent such as bupivacaine or levobupivacaine and a saccharide. If the amount of the anaesthetic agent is no more than 0.75 % w/v, a salt or another additional non-saccharide is present. Accordingly, the amount of the saccharide can be kept below that which would provide isotonicity in the absence of the additional non-saccharide.
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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