Piperacillin is an extended spectrum beta-lactam antibiotic that belongs to the ureidopenicillin class. The pair is usually co-administered with the beta-lactamase tazobactam inhibitor, leading to increased activity including Gram positive and Gram negative pathogens, and aerobic organisms such as Pseudomonas aeruginosa. Piperacillin is used for the treatment of infections susceptible to strains of microorganisms such as staphylococcus, streptococcus and klebsiella genus. It is indicated for pulmonary, intra-abdominal infections, complicated urinary tract infections and others.