Linezolid is indicated for severe Gram-positive infections, including MRSA, VRE, hospital-acquired and ventilator-associated pneumonia, and complicated skin infections. It provides reliable IV therapy with excellent lung penetration, making it a strong choice in pneumonia. Particularly valuable in resistant infections where other antibiotics fail. No renal dose adjustment simplifies use in critically ill patients. Ideal for ICU settings requiring predictable, targeted treatment.