Johnson & Johnson filed to dismiss a US patent infringement lawsuit related to Impax's generic version of Concerta (methylphenidate), the generic drugmaker announced Tuesday. Johnson & Johnson indicated that it will instead pursue a Citizen's Petition with the FDA regarding approval criteria for generic versions of the attention-deficit hyperactivity disorder drug, Bloomberg reports.
Impax noted in a statement that its generic version of Concerta is currently under review by the FDA. The drug had US sales of $846 million in the twelve month-period ended in July.
Meanwhile, a spokesperson for Johnson & Johnson said that the drugmaker has not abandoned a similar patent infringement suit that has been filed against Andrx, in an effort to block generic competition for Concerta until 2018, Bloomberg reports.
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