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Antitrust litigation - Zydus Pharmaceuticals - Cadila Healthcare - Gilead Sciences

Zydus Pharmaceuticals and Cadila Healthcare filed a complaint against Gilead Sciences for allegedly engaging in anticompetitive behavior aimed at keeping generic versions of its pulmonary hypertension drug Letairis off the market. The complaint alleges that Gilead has refused to provide samples of Letairis, preventing Zydus from performing the bioequivalence testing required to obtain US Food and Drug Administration approval for its generic under the Letairis Risk Evaluation and Mitigation Strategy Program developed by Gilead. 

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