广谱β-内酰胺类抗生素;Extended spectrum beta-lactam antibiotic;Piperacillin is a semisynthetic, broad-spectrum, ampicillin derived ureidopenicillin antibiotic proposed for pseudomonas infections.;Piperacillin is a semisynthetic, broad-spectrum, ampicillin derived ureidopenicillin antibiotic proposed for pseudomonas infections.An antibiotic related to penicillin