Shanghai MicuRx Pharmaceutical Co., Ltd., a biopharmaceutical company, discovers, develops, and commercialize drugs for unmet medical needs. It is developing Contezolid (MRX-I) and Contezoilid acefosamil (MRX-4) oxazolidinone antibiotics for multidrug-resistant gram-positive bacteria; MRX-8 MRX, a polymyxin antibiotic, to target multidrug-resistant Gram-negative bacteria; MRX-5 for multidrug-resistant gram-negative bacteria; MRX-7 for multidrug-resistant gram-positive bacteria; MRX-15 and MRX-17 to treat kidney disease; MRX-18 for the treatment of COVID-19; and MRX-23 for the treatment of tumour. The company was founded in 2007 and is based in Shanghai, China.