Primaxin is a broad-spectrum antibiotic medication used to treat a variety of bacterial infections. It is a combination drug, consisting of imipenem, a beta-lactam antibiotic that inhibits cell wall synthesis in bacteria, and cilastatin, a renal dehydropeptidase inhibitor that prevents the degradation of imipenem in the kidneys, thereby increasing its concentrations in the body. Primaxin is effective against a wide range of gram-positive and gram-negative bacteria, making it a valuable option for treating severe or complicated infections where other antibiotics might not be effective. It is typically administered intravenously in a hospital or healthcare setting, under the supervision of a healthcare professional. Due to its broad-spectrum activity and potency, Primaxin is often reserved for use in cases of serious infections or when other antibiotics have failed.