EP0639375A1 — A bile duct deterging composition
Assigned to Senju Pharmaceutical Co Ltd · Expires 1995-02-22 · 31y expired
What this patent protects
A bile duct deterging composition which comprises from about 10 w/v% to about 40 w/v% of N-acetylcysteine as an effective component or an alkali metal salt thereof and which is an aqueous solution adjusted to a pH of 7.0 to 8.0.
USPTO Abstract
A bile duct deterging composition which comprises from about 10 w/v% to about 40 w/v% of N-acetylcysteine as an effective component or an alkali metal salt thereof and which is an aqueous solution adjusted to a pH of 7.0 to 8.0.
Drugs covered by this patent
- Acetadote (Acetylcysteine) · Bristol-Myers Squibb
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.