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WHO Model List

cloxacillin

International nonproprietary name (English: cloxacillin). Brand names vary by country.

Indications retained by WHO

Bacterial infection of unspecified site.

Listed forms and strengths

  • Oral > Liquid: 125 mg per 5 mL (as sodium salt) powder for oral liquid; 250 mg per 5 mL (as sodium salt) powder for oral liquid
  • Parenteral > General injections > unspecified: 250 mg in vial (as sodium salt) powder for injection; 500 mg in vial (as sodium salt) powder for injection
  • Oral > Solid > capsule: 250 mg (as sodium salt); 1 g (as sodium salt); 500 mg (as sodium salt)
  • Oral > Liquid: 250 mg per 5 mL (as sodium salt) powder for oral liquid; 125 mg per 5 mL (as sodium salt) powder for oral liquid
  • Parenteral > General injections > unspecified: 500 mg in vial (as sodium salt) powder for injection; 250 mg in vial (as sodium salt) powder for injection
  • Oral > Solid > capsule: 500 mg (as sodium salt); 1 g (as sodium salt); 250 mg (as sodium salt)
  • Oral > Liquid: 125 mg per 5 mL (as sodium salt) powder for oral liquid
  • Oral > Solid: 500 mg (as sodium salt) capsule; 1 g (as sodium salt) capsule
  • Parenteral > General injections > unspecified: 500 mg in vial (as sodium salt) powder for injection

Forms retained in the model list; presentations available in each country may differ.

General information from the WHO list. It replaces neither the prescription nor the leaflet: dosage and duration are for the doctor or pharmacist to decide.

Source: WHO electronic Essential Medicines List (2025 edition), checked on 14/11/2026. An error or an imprecision? Let us know