Cefuroxime vs Cefuroxime Axetil
Cefuroxime and cefuroxime axetil are related cephalosporin agents but are not the same drug entity in oral formulations. [1]
Cefuroxime axetil is an orally administered ester prodrug that is absorbed and rapidly hydrolyzed by nonspecific esterases in the intestinal mucosa and blood to cefuroxime (the microbiologically active form). [2]
Chemical identity and clinical implication
Cefuroxime is the active cephalosporin (cefuroxime “free acid” form) used for antibacterial activity. [1]
Cefuroxime axetil is the oral prodrug formulation designed to enable oral bioavailability of cefuroxime. [2]
Because the oral prodrug is converted to cefuroxime in vivo, product labeling dosing refers to cefuroxime axetil, not cefuroxime. [2]
Interchangeability statement
Cefuroxime axetil should not be considered automatically equivalent to cefuroxime for purposes such as dose conversion across formulations because the prodrug and active drug have different pharmacologic and labeling contexts. [2]
Practical takeaway
Cefuroxime axetil is the oral prodrug form whose active antimicrobial is cefuroxime after in vivo hydrolysis. [2]