> Western Medicines > Cloxacillin


Used for: Skin infection, Pneumonia, Bone and joint infections, Endocarditis, Toxic shock syndrome
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What is Cloxacillin for?

Cloxacillin is an antibiotic for treating or preventing bacterial (especially Staphylococcal) infections, including but not limited to the following:

  • Bone and joint infections
  • Bacterial infections on heart valves or cardiac devices (endocarditis)
  • Pneumonia
  • Skin infections
  • Toxic shock syndrome

How to use it?

Cloxacillin can be either taken by mouth in conventional tablets or by parenteral injection.


Orally, the usual adult dose of Cloxacillin ranges from 250-500 mg every six hours. The usual dose of injectable Cloxacillin ranges from 250-1000 mg every six hours. Higher doses of injectable Cloxacillin may be used in severe infections.

What are the side effects of Cloxacillin?

The common side effects of Cloxacillin include skin rashes, stomach and intestinal pain, diarrhoea, flatulence, and nausea.

Who should not take Cloxacillin?

  • Anyone who has an allergy to cloxacillin or other penicillins.
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Where to buy Cloxacillin in Hong Kong?

In Hong Kong, Cloxacillin is a prescription-only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Cloxacillin in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Brands in Hong Kong
Available dosage
  • 500mg (Injections)
  • 250mg / 500mg (Tablets)
Drug class
Sub class
Other drugs in same class
Amoxicillin+Clavulanic acid
Used for: Dental infections, Helicobacter pylori (H. pylori) eradication, Respiratory tract infections, Other bacterial infections, Ear infections, Urinary tract infections (UTIs)
Used for: Bone and joint infections, Skin and soft tissue infections, Intra-abdominal infections, Gonorrhea, Respiratory tract infections, Urinary tract infections (UTIs)
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Used for: Bacterial infections, Gonorrhea, Prevention of surgical infections
Chinese name:
Used for: Ear infections, Bone infections, Pneumonia, Skin and wound infections
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Used for: Susceptible bacterial infections
Chinese name:
Used for: Urinary tract infections (UTIs), Pneumonia, Skin and soft tissue infections, Intra-abdominal infections, Acute otitis media, Prevention of surgical infections, Respiratory tract infections, Bone and joint infections
Chinese name: