Patent · US Active

Metaxalone polymorphs

US7750165B2 · kind B2 · utility

9Cited by

4References

7Claims

0Family size

Assignee

Fresenius Kabi Oncology Ltd. · IN

Inventors

Jayanta Chattopadhyay · Rehti, IN
Subrata Sarkar · Bengaluru, IN
Jyan Shankar Mahanty · Rehti, IN
Susanta Hazra · Rehti, IN
Moloy Mitra · Ghaziabad, IN
Manoj Kumar Singh · Sayla, IN

Key dates

Filing date	Dec 29, 2006
Grant date	Jul 6, 2010
Priority date	—
Expiry date	Dec 29, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P21/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention provides two crystalline forms A and B of the skeletal muscle relaxant and anxiolytic agent, Metaxalone of formula (I), and a process for preparation thereof. The two crystalline forms A and B are bioavailable. The invention further provides pharmaceutical compositions comprising the two bioavailable crystalline forms, useful for the relief of discomforts associated with acute, painful musculoskeletal conditions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.