Medicines & Supplements A to Z > Cloxacillin


Last updated on July 26, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Cloxacillin


COMMON BRANDS IN HONG KONG: Apo-Cloxi, Cloxacap, Cloxamox, Cloxacin, Lampicin (Contains Cloxacillin and Ampicillin)

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 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. If you are taking Cloxacillin by mouth, you are advised to take it on an empty stomach (1 hour before or 2 hours after meals) which enhances its absorption.

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.

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

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.