FDA Proposes to Withdraw Kremers Generic Concerta
Federal Register Notice: FDA has proposed to withdraw ANDA approval for methylphenidate hydrochloride extended-release tablets, and is announcing an opportunity for the holder of the ANDA, Kremers Urban Pharmaceuticals, to request a hearing. After receiving adverse event reports, FDA determined there was an insufficient therapeutic effect of the Kremers product. A new bioequivalence study by Kremers found that its product failed to meet the criteria for bioequivalence under fed conditions because it did not provide the same extent of methylphenidate exposure as the reference-listed product. To view this notice, click here.