Used to treat complicated intra-abdominal infections, eravacycline is a synthetic tetracycline antibiotic effective against multidrug-resistant bacteria. It works by inhibiting bacterial protein synthesis, making it active against a broad spectrum of pathogens, including Gram-positive, Gram-negative, anaerobes, and atypical bacteria. Its stability against common tetracycline resistance mechanisms enhances its utility in settings where other antibiotics fail. It is typically administered intravenously in hospital or clinical settings for patients with limited treatment options.