Barr challenges Nasacort patent
Barr Laboratories says that it is challenging the patents protecting Aventis Pharmaceuticals' (a US unit of the Sanofi-Aventis group) Nasacort AQ (triamcinolone) nasal spray. The company believes that it is the first to file an Abbreviated New Drug Application containing a paragraph IV certification for this rhinitis treatment.
Nasacort AQ had annual sales of approximately $346.0 million for the 12 months ended March 2006, based on IMS sales data, says Barr.
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