Perrigo's 'Inversion' Of Flonase Trademark Cuts Too Close For Glaxo's Market Share Comfort

Glaxo says it distributed more than $330m in Flonase Allergy Relief in 2015, its first year available as the second-in-category corticosteroid nasal spray, but argues that Nasoflow, Perrigo's brand for a generic equivalent, unfairly will encroach on its sales and market share.

GlaxoSmithKline PLC attempts to delay competition for its Flonase Allergy Relief intranasal corticosteroid in a complaint alleging Perrigo Co. PLC's Nasoflow generic too closely resembles its brand and packaging.

"Nasoflow is essentially the inversion of the two syllables used in Flonase. Given the substantial similarities between Flonase and Nasoflow, consumers are likely to confuse them as to source, sponsorship and/or affiliation," according to a

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