Ertapenem disodium is primarily used as a broad-spectrum antibiotic in the treatment of various bacterial infections. It is effective against both Gram-positive and Gram-negative organisms, including anaerobes. Common clinical applications include the management of intra-abdominal infections, where it targets mixed bacterial flora often involved in such conditions. It is also used for treating community-acquired pneumonia, especially in moderate to severe cases requiring hospitalization. Additionally, it plays a role in the treatment of complicated skin and soft tissue infections, as well as urinary tract infections caused by susceptible pathogens. Due to its once-daily dosing and strong tissue penetration, ertapenem disodium is often chosen for outpatient parenteral antibiotic therapy, allowing for shorter hospital stays or effective treatment outside the hospital setting. Its stability against many beta-lactamases makes it valuable in treating infections where resistance to other beta-lactam antibiotics is a concern.