Ceftazidime — Uses, Dosage, Side Effects & Safety

Drug class: Third-generation cephalosporin antibiotic

Overview

Ceftazidime is a prescription antibiotic used to treat a wide range of serious bacterial infections, including those of the lungs (such as pneumonia), urinary tract, skin, abdomen, bones, joints, and blood (septicemia). It is especially effective against certain Gram-negative bacteria, including Pseudomonas aeruginosa. Ceftazidime works by interfering with the bacteria's cell wall synthesis, ultimately killing the bacteria and stopping the infection from spreading. It is usually given by injection into a vein or muscle, often in a hospital setting. Key points for patients: Ceftazidime is not effective against viral infections (like the common cold or flu). Always complete the full course as prescribed, even if you feel better, to prevent antibiotic resistance. Inform your healthcare provider about any allergies, especially to penicillins or cephalosporins.

Therapeutic uses

  • Bacterial infections

For related Ceftazidime guidance, compare Cefdinir and Ultraxime (Cefotaxime brand).

Common side effects

  • Diarrhea
  • Nausea
  • Vomiting
  • Rash
  • Injection site reactions
  • Clostridium difficile-associated diarrhea
  • Seizures

Frequently Asked Questions about Ceftazidime

What infections does ceftazidime treat?

Ceftazidime is used to treat serious bacterial infections such as pneumonia, urinary tract infections, skin and soft tissue infections, abdominal infections, bone and joint infections, and septicemia. It is particularly effective against Gram-negative bacteria, including Pseudomonas aeruginosa.

How is ceftazidime administered?

Ceftazidime is given by injection, either intravenously (IV) or intramuscularly (IM), typically by a healthcare professional in a hospital or clinic.

Can I take ceftazidime if I am allergic to penicillin?

If you have a history of severe allergic reactions to penicillins or cephalosporins, you should not take ceftazidime. Always inform your healthcare provider about any allergies.

What should I do if I experience diarrhea while on ceftazidime?

Mild diarrhea is common, but if you develop severe, persistent, or bloody diarrhea, contact your doctor immediately as this may indicate a serious intestinal infection (C. difficile-associated diarrhea).

Is ceftazidime safe during pregnancy or breastfeeding?

Ceftazidime should be used during pregnancy or breastfeeding only if clearly needed and prescribed by your doctor. Discuss risks and benefits with your healthcare provider.

How should ceftazidime be stored?

Store unopened vials at room temperature, away from moisture and light. Reconstituted solutions should be used promptly or stored as directed by your pharmacist.

What are the signs of a serious allergic reaction to ceftazidime?

Serious allergic reactions may include rash, itching, swelling (especially of the face/tongue/throat), severe dizziness, or difficulty breathing. Seek emergency medical help if these occur.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.