Ceftazidime 250 mg + Tazobactam 125 mg

Category- Allopathy

Medicine Highlights

Ceftazidime + Tazobactam Uses  

Ceftazidime + Tazobactam is an antibiotic combination belonging to the beta-lactam class (cephalosporin + beta-lactamase inhibitor), and it is used for the treatment of the following bacterial infections: 

1. Lung infections, such as pneumonia, bronchitis 
2. Skin or soft tissue infections 
3. Urinary tract infections 
4. Bone and joint infections  

Directions for use

1. Take this medicine exactly as prescribed by your doctor, at the same time each day. 
2. Do not stop taking this medicine without your doctor’s approval, even if you feel better. 
3. If you forget to take this medicine, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose.  

Ceftazidime + Tazobactam side effects 

More Common  

1. Pain, redness, or swelling at the injection site 
2. Nausea 
3. Vomiting 
4. Diarrhea 
5. Stomach discomfort       

Less Common

1. Headache 
2. Dizziness 
3. Mild skin rash or itching 
4. Fever          

How Ceftazidime + Tazobactam works 

Ceftazidime kills bacteria by breaking their protective cell walls, which causes the bacteria to burst and die. Some bacteria produce enzymes that can resist ceftazidime, but tazobactam blocks these enzymes, allowing ceftazidime to work effectively and clear the infection. 

Safety Measures and Warning 

Allergy/Hypersensitivity

If you are allergic to this medicine, inform your doctor as taking it may cause severe allergic reactions like swelling, breathing difficulty, or dangerous rashes.

Kidney Disease

This medicine may not be fully eliminated in patients with impaired kidney function. Inform your doctor if you have kidney disease, as side effects may be increased.  

Liver Function

People with serious liver disease should use this medicine only under a doctor’s supervision. As the drug is processed in the liver and can worsen liver problems. 

Pregnancy and Breastfeeding

If you are pregnant or breastfeeding, take this medicine only if your doctor says it is necessary. Small amounts of the drug can pass to the fetus and can cause harmful effects, so always tell your doctor before using it. 

Ceftazidime + Tazobactam Interaction with Food Product

This injection does not have significant food interactions, so it can be given regardless of meals. Taking it before or after food does not affect its effectiveness, but following the healthcare professional’s instructions carefully ensures the medicine works safely and properly. 

Ceftazidime + Tazobactam Interaction with Other Medicines

Avoid taking Ceftazidime + Tazobactam with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal: 

Ceftazidime + Tazobactam Chemical Structure

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

Ceftazidime: (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(2-carboxypropan-2-yloxyimino)acetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 

Tazobactam: (2S,3S,5R)-3-methyl-4,4,7-trioxo-3-(triazol-1-ylmethyl)-4λ⁶-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid  

Intake routine/cycle

Daily dose

Take Ceftazidime + Tazobactam exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor. 

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage. 

Overdose

 It is not recommended to exceed the prescribed dose of Ceftazidime + Tazobactam, as doing so may increase the risk of side effects such as pain or swelling at the injection site, nausea, vomiting, diarrhea, allergic reactions, or liver problems. If anyone develops severe symptoms after taking this injection, seek medical attention immediately. 

Storage

1. Store the medicine at room temperature 
2. Keep away from sunlight and moisture 
3. Keep out of reach of children 

Ceftazidime + Tazobactam Summary

Ceftazidime + Tazobactam is a broad-spectrum antibiotic combination used to treat serious bacterial infections, including respiratory tract infections, urinary tract infections, skin and soft tissue infections, intra-abdominal infections, sepsis, and hospital-acquired infections. Ceftazidime kills bacteria by breaking their outer covering called cell walls, while Tazobactam blocks bacterial enzymes that make them resistant, allowing the antibiotic to work effectively. It is administered via intravenous (IV) or intramuscular (IM) injection and can be given with or without food.  

Common side effects include pain at the injection site, nausea, vomiting, diarrhea, and mild rash, while serious side effects like severe allergic reactions or liver problems are rare. People allergic to this medicine, kidney or liver problems, should use this medicine only under medical supervision. Always complete the full course of treatment to ensure the infection is fully treated.   

FAQ’s

What are the uses of Ceftazidime injection? 

Ceftazidime injection is used to treat serious bacterial infections such as pneumonia, urinary tract infections, blood infections (septicemia), meningitis, skin and soft tissue infections, bone and joint infections.

What class of drug does Ceftazidime belong to? 

Ceftazidime belongs to the third-generation cephalosporin class of antibiotics.  

What are the side effects of Ceftazidime? 

Common side effects of ceftazidime include pain or swelling at the injection site, nausea, vomiting, diarrhea, headache, and dizziness. Rare but serious side effects include allergic reactions (rash, swelling, breathing difficulty), severe diarrhea, kidney problems, low blood cell counts, and seizures, especially in patients with kidney disease.  

Which generation does Ceftazidime belong to? 

Ceftazidime belongs to the third generation of cephalosporin antibiotics. 

What are the uses of Tazobactam? 

Tazobactam is not used alone. It is given in combination with antibiotics like Ceftazidime to treat serious bacterial infections. This combination is used for infections such as respiratory tract infections, urinary tract infections, skin infections, intra-abdominal infections, sepsis, and hospital-acquired infections. 

What class of drug does Tazobactam belong to? 

Tazobactam is a beta-lactamase inhibitor. It is not an antibiotic by itself but is combined with certain antibiotics (like ceftazidime) to prevent bacteria from destroying the antibiotic, making the treatment more effective. 

What are the side effects of Tazobactam injection? 

When given with antibiotics like ceftazidime, common side effects may include pain or swelling at the injection site, nausea, vomiting, diarrhea, and mild skin rash. Rare but serious effects include allergic reactions, severe diarrhea, yellowing of eyes or skin, or unusual bruising/bleeding. Always inform your doctor if any serious reactions occur. 

Reference 

1. Ceftazidime + Tazobactum: View Uses, Side Effects and Medicines | 1mg [Internet]. 1mg. 2021 [cited 2026 Jan 13]. Available from 
2. Truemeds [Internet]. Truemeds.in. 2019 [cited 2026 Jan 13]. Available from 
3. PubChem. Tazobactam [Internet]. Nih.gov. PubChem; 2026 [cited 2026 Jan 13]. Available from 
4. PubChem. Ceftazidime [Internet]. Nih.gov. PubChem; 2026 [cited 2026 Jan 12]. Available from  

Pranathi Chintaluri

Pranathi is a final year Pharm D student at Chalapathi Institute of Pharmaceutical Sciences. She loves learning and applying her knowledge in pharmacy and has a passion for writing, which allows her to express ideas clearly and creatively. She enjoys combining her technical skills with her love for writing and communication to make a meaningful impact. Currently she is working on a research paper about “Consanguineous marriages and its impact on children’s health” which will be published by the end of 2025.