US Patent

US9427421 — Effervescent compositions containing N-acetylcysteine

Formulation · Assigned to Alpex Pharma SA · Expires 2032-05-08 · 6y remaining

Vulnerability score 48/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects effervescent pharmaceutical compositions containing a high amount of N-acetylcysteine.

USPTO Abstract

Effervescent pharmaceutical compositions containing a high amount of N-acetylcysteine and a method of treating acetaminophen poisoning with effervescent pharmaceutical compositions containing a high amount of N-acetylcysteine are described.

Drugs covered by this patent

Acetadote (Acetylcysteine) · Bristol-Myers Squibb

Patent Metadata

Patent number: US9427421
Jurisdiction: US
Classification: Formulation
Expires: 2032-05-08
Drug substance claim: No
Drug product claim: Yes
Assignee: Alpex Pharma SA
Source: FDA Orange Book + USPTO grounding via Google Patents

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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