Lefamulin is primarily used as an antibiotic to treat bacterial infections, particularly community-acquired bacterial pneumonia (CABP) in adults. It works by inhibiting bacterial protein synthesis, making it effective against a range of Gram-positive and some Gram-negative pathogens. Its unique mechanism of action helps in combating antibiotic-resistant strains of bacteria. Lefamulin is available in both intravenous and oral forms, providing flexibility in treatment options for patients who require hospitalization or those who can be managed on an outpatient basis. Its use is especially valuable in cases where patients have allergies or intolerances to other antibiotics like beta-lactams or macrolides.