Cloxacillin sodium salt monohydrate is a specific form of the antibiotic cloxacillin that contains a single molecule of water within its crystal structure. This formulation is commonly used in pharmaceutical preparations for oral, intravenous, or intramuscular administration. Cloxacillin sodium salt monohydrate has bactericidal properties against a variety of gram-positive bacteria, making it effective in treating infections caused by susceptible organisms. It works by interfering with bacterial cell wall synthesis, ultimately leading to bacterial cell death. This medication is available in various dosage forms such as capsules, tablets, and injections.