CA Patent

CA2802874A1 — Polymorphic forms of rifaximin

Assigned to Apotex Pharmachem Inc · Expires 2011-12-22 · 14y expired

What this patent protects

Provided for in the instant application are two additional polymorphic forms of rifaximin; namely substantially pure APO-I and ???-?. Also provided are processes for preparing substantially pure APO-I and ???-?. Rifaximin is a non-aminoglycoside antibiotic that has previously bee…

USPTO Abstract

Provided for in the instant application are two additional polymorphic forms of rifaximin; namely substantially pure APO-I and ???-?. Also provided are processes for preparing substantially pure APO-I and ???-?. Rifaximin is a non-aminoglycoside antibiotic that has previously been found to be useful for the treatment of traveller's diarrhea caused by Escherichia coli bacteria, as well as in the treatment of irritable bowel syndrome, diverticular disease, hepatic encephalopathy, pyogenic skin infections and as an antibacterial prophylactic prior to colon surgery.

Drugs covered by this patent

Patent Metadata

Patent number
CA2802874A1
Jurisdiction
CA
Classification
—
Expires
2011-12-22
Drug substance claim
No
Drug product claim
No
Assignee
Apotex Pharmachem Inc
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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