[1] This includes impetigo, cellulitis, pneumonia, septic arthritis, and otitis externa.

[3] It is on the World Health Organization's List of Essential Medicines.

This drug has a weaker antibacterial activity than benzylpenicillin, and is devoid of serious toxicity except for allergic reactions.

[citation needed] Cloxacillin was discovered and developed by Beecham (now GlaxoSmithKline).

[5] It is sold under a number of trade names, including Cloxapen, Cloxacap, Tegopen and Orbenin.