How does cefaclor work?

Cefaclor works by killing the bacteria that can cause some respiratory tract infections (RTIs) such as middle ear infections, sinusitis, pneumonia and other infections.

Cefaclor interferes with the building and repairing of bacterial cell walls by affecting the bonds holding the bacterial cell wall together. This allows holes to appear in the cell wall, killing the bacteria.

The bacterial cell wall is essential for survival because it prevents the bacterial cell contents from leaking out, and protects the bacteria from unwanted substances getting into the cells.

Find out more about which infections cefaclor is used for, who can take it, and the side effects and interactions of cefaclor.

  • Rossi S, ed. Australian Medicines Handbook [online]. Adelaide: AMH, July 2012.
  • Sweetman S, ed. Martindale: The complete drug reference [online]. London: Pharmaceutical Press (accessed 18 October 2011).
  • Antibiotic Expert Group. Therapeutic Guidelines: Cefaclor. Melbourne: Therapeutic Guidelines Limited, 2012 (accessed 27 March 2012).