This product can compete with histamine released from tissues for the H21 receptors on effector cells, thereby preventing the onset of allergic reactions and relieving the spasmodic and congestive effects of histamine.

Cefepime is a broad-spectrum fourth-generation cephalosporin that achieves bactericidal effects by inhibiting the biosynthesis of bacterial cell walls. It is effective against both Gram-positive and Gram-negative bacteria, is highly resistant to hydrolysis by most beta-lactamases, and can quickly penetrate into Gram-negative bacterial cells. In bacterial cells, its target molecule is penicillin-binding protein (PBP).

It produces direct pharmacological effects through hypertonic dehydration, eliminating cerebral edema and reducing intracranial pressure; it has an osmotic diuretic effect; it has a tissue dehydration effect, increasing plasma osmotic pressure and reducing tissue edema; it has a diuretic effect, increasing renal blood flow and glomerular filtration rate, and reducing the reabsorption of water and electrolytes by the renal tubules.

It produces direct pharmacological effects through hypertonic dehydration, eliminating cerebral edema and reducing intracranial pressure; tissue dehydration effect, reducing tissue edema; diuretic effect, increasing the osmotic concentration of renal tubular fluid, reducing reabsorption, and increasing renal tubular fluid flow.

Piperacillin is a semi-synthetic penicillin antibiotic with a broad-spectrum antibacterial effect. It has good antibacterial effects on Enterobacteriaceae such as Escherichia coli, Proteus, Serratia, Klebsiella, Enterobacter, Citrobacter, Salmonella and Shigella, as well as other Gram-negative bacteria such as Pseudomonas aeruginosa, Acinetobacter, Haemophilus influenzae and Neisseria. It also has certain antibacterial activity against Enterococci, Group A and Group B hemolytic streptococci, Streptococcus pneumoniae and Staphylococci that do not produce penicillinase. Many anaerobic bacteria, including Bacteroides fragilis and Clostridium, are also sensitive to piperacillin. The mechanism of action of piperacillin is to exert a bactericidal effect by inhibiting bacterial cell wall synthesis.