Beta-lactamase inhibitors are used to treat bacterial infections such as respiratory tract infections, intra-abdominal infections, and skin infections. These medications work by blocking the action of beta-lactamase enzymes produced by bacteria, which helps to prevent the bacteria from breaking down antibiotics. This makes the antibiotics more effective. Beta-lactamase inhibitors come in different forms and are typically found in combination products. One example is an injectable medication called Xacduro (sulbactam / durlobactam).