Meropenem is a broad-spectrum carbapenem antibiotic used to treat a variety of bacterial infections, particularly those caused by multi-drug resistant organisms. It works by inhibiting bacterial cell wall synthesis, leading to cell death. Meropenem is often employed in serious infections, including those in the bloodstream, lungs, and intra-abdominal region. It is typically administered intravenously and is effective against both Gram-positive and Gram-negative bacteria.