Lizox 600 mg is a prescription-strength antibiotic containing Linezolid 600 mg, a synthetic antibacterial agent from the oxazolidinone class. Manufactured by Aristopharma Ltd., Lizox is specially formulated to treat a broad range of serious infections caused by Gram-positive bacteria, including multidrug-resistant strains such as MRSA (Methicillin-Resistant Staphylococcus aureus) and VRE (Vancomycin-Resistant Enterococci).