Ranbaxy Laboratories Ltd., Indias second-biggest drugmaker, dropped a bid to generic versions of Schering-Plough Corp.s allergy medicine in the U.S.? Active Ingredient: Bromocriptine: Manufacturer: Novartis: (bromocriptine) is classified as a dopamine agonist drug that lowers prolactin levels.The official healthcare professional website for (mesalamine). Read safety info including use in patients with hepatic impairment. This site is intended for US Health Care Professionals only. Important Safety Information Full Prescribing Information.