Medicines & Supplements A to Z > Ceftazidime


Last updated on 05/07/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Ceftazidime



DRUG CLASS: Antibiotics

SUB CLASS: Cephalosporins (Third Generation)

USED FOR: Bacterial meningitis, urinary tract infections (UTIs), respiratory tract infections, pneumonia, bone and joint infections, skin and soft tissue infections, intra-abdominal infections, prevention of surgical infections

– 500 mg, 1 g (injections/infusions)

What is Ceftazidime for?

Ceftazidime belongs to a class of medications called cephalosporin antibiotics. It kills bacteria by interrupting the integrity of bacterial cell walls. It is used to treat infections, including pneumonia and other respiratory tract infections, bacterial meningitis, genital infections, bone and joint infections, and skin and soft tissue infections. Ceftazidime is also used for the prevention of surgical infections in patients undergoing prostate surgery. Ceftazidime does not work for virus or fungus infections.

How to use it?

Ceftazidime is injected through a needle into a vein or muscle as directed by your doctor. Your doctor will advise you on the dosage and frequency depending on your infection.

Bacterial meningitis
2 g every 8 hours.
Elderly over 80 years
2 g every 8 hour. Maximum dose is 3 g daily.
Body weight <40 kg: 150 mg/kg body weight daily in 3 divided doses. Maximum dose is 6 g daily.

Cystic fibrosis
30-50 mg/kg body weight every 8 hours. Maximum dose is 6 g daily.

Urinary tract infections
1-2 g every 8-12 hours.
Elderly over 80 years
1-2 g every 8-12 hours. Maximum dose is 3 g daily.
Body weight <40 kg: 100-150 mg/kg body weight daily in 3 divided doses. Maximum dose is 6 g daily.

Prevention of surgical infections during prostate surgery
1 g to be administered at the induction of anaesthesia.
Elderly over 80 years
Maximum dose is 3 g daily.

What are the side effects of Ceftazidime?

Common side effects of Ceftazidime include abdominal pain, diarrhoea, dizziness, headache, nausea and vomiting, and allergic skin reactions.

Who should not take Ceftazidime?

– People allergic to Ceftazidime or any component of the formulation.
– Anyone who is allergic to cephalosporins.

Pharmacist Tips:

– Report severe diarrhoea and ask your doctor or pharmacist before taking antidiarrheal medicines.
– Drink plenty of water to replace any lost fluids due to diarrhoea.
– If you experience symptoms like skin rash or enlarged lymph nodes, report to your doctor immediately.

Common dosing schedule:
Ceftazidime is usually administered every 8 hours.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Ceftazidime may interact with:
– Aminoglycoside antibiotics, e.g. Amikacin, Gentamicin, Tobramycin
– Antidiarrheal medications

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Ceftazidime in Hong Kong?

In Hong Kong, Ceftazidime 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

Need more information?

For detailed information about the use of Ceftazidime 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.