Durataz 4000 mg/500 mg Injection: Complete Medicine Guide
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Difficulty breathing, swelling of the face, lips, tongue, or throat
- Severe rash, blistering, or peeling skin
- Severe or persistent diarrhea, abdominal cramps, or fever
- Seizures, confusion, or unusual movements
- Decreased urine output, swelling in legs, or fatigue
- Yellowing of skin or eyes, dark urine, or severe abdominal pain
- Unusual bleeding or bruising
- Fast or irregular heartbeat, chest pain
If experiencing severe symptoms, call emergency services immediately.
What is clazact 4.5 injection used for?
This medicine is a combination antibiotic containing piperacillin and tazobactam, given intravenously to treat serious bacterial infections. It works by killing bacteria and is used for infections of the abdomen, skin, lungs, and urinary tract, among others. It is administered by a healthcare professional in a hospital setting.
- Generic Name: Piperacillin + Tazobactam
- Manufacturer: Louis and Clark Pharmaceutical
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 clazact 4.5 injection के बारे में (Hindi Summary)
उपयोग: यह दवा पाइपरासिलिन और टैज़ोबैक्टम का संयोजन है, जिसे गंभीर जीवाणु संक्रमणों के इलाज के लिए नस के माध्यम से दिया जाता है। यह पेट के अंदर के संक्रमण, त्वचा और मुलायम ऊतकों के संक्रमण, निमोनिया, मूत्र मार्ग के संक्रमण, और कैंसर रोगियों में बुखार के इलाज में उपयोग किया जाता है। यह दवा अस्पताल में डॉक्टर या नर्स द्वारा दी जाती है और इसे स्वयं नहीं लिया जा सकता।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में दस्त, जी मिचलाना, उल्टी, सिरदर्द, चकत्ते और इंजेक्शन की जगह पर दर्द या सूजन शामिल हैं। गंभीर दुष्प्रभावों में एलर्जी की प्रतिक्रिया, गंभीर दस्त, दौरे, और रक्त विकार हो सकते हैं। यदि आपको सांस लेने में कठिनाई, चेहरे या गले में सूजन, या गंभीर दस्त हो, तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: यह दवा केवल अस्पताल में डॉक्टर की देखरेख में दी जानी चाहिए। उपचार से पहले अपने डॉक्टर को अपनी सभी चिकित्सीय स्थितियों, विशेषकर गुर्दे या यकृत की बीमारी, और किसी भी एलर्जी के बारे में बताएं। अपनी सभी दवाओं की सूची दें। उपचार के दौरान गुर्दे और यकृत की कार्यप्रणाली की निगरानी की जाएगी। बेहतर महसूस होने पर भी इलाज बीच में न रोकें। शराब से बचें। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर को बताएं।
💊 clazact 4.5 injection Uses & Benefits
[{"condition":"Complicated intra-abdominal infections","description":"Used to treat serious infections within the abdomen, such as peritonitis, appendicitis with rupture, and intra-abdominal abscesses, often in combination with other antibiotics.","evidence":"Well-established"},{"condition":"Complicated skin and soft tissue infections","description":"Effective against severe skin infections including cellulitis, abscesses, and diabetic foot infections caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Community-acquired pneumonia","description":"Used for moderate to severe community-acquired pneumonia, especially when Pseudomonas aeruginosa is suspected or as part of empiric therapy.","evidence":"Well-established"},{"condition":"Nosocomial pneumonia","description":"Treats hospital-acquired and ventilator-associated pneumonia caused by susceptible gram-negative bacteria, including Pseudomonas aeruginosa.","evidence":"Well-established"},{"condition":"Febrile neutropenia","description":"Used as empiric therapy for fever in neutropenic patients, often in combination with other antibiotics.","evidence":"Well-established"},{"condition":"Complicated urinary tract infections","description":"Treats severe urinary tract infections, including pyelonephritis, caused by susceptible organisms.","evidence":"Well-established"},{"condition":"Gynecological infections","description":"Used for postpartum endometritis, pelvic inflammatory disease, and other gynecological infections.","evidence":"Well-established"},{"condition":"Bone and joint infections","description":"May be used for osteomyelitis and septic arthritis caused by susceptible bacteria.","evidence":"Limited"},{"condition":"Bacteremia","description":"Used to treat bloodstream infections caused by susceptible gram-negative and gram-positive bacteria.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Melioidosis","description":"Sometimes used off-label for melioidosis, a bacterial infection caused by Burkholderia pseudomallei, though other antibiotics are more commonly used.","evidence":"Limited"},{"condition":"Necrotizing fasciitis","description":"May be used as part of combination therapy for necrotizing fasciitis, though evidence is limited.","evidence":"Limited"}]
Primary treatment for: Bacterial infections
Also treats: Complicated intra-abdominal infections, Complicated skin and soft tissue infections, Community-acquired pneumonia, Nosocomial pneumonia, Febrile neutropenia, Complicated urinary tract infections, Gynecological infections, Bacteremia
📋 Drug Information
| Generic Name(s) | Piperacillin + Tazobactam |
| Brand Name | Ahentaz 4.5 Injection |
| Manufacturer | Louis and Clark Pharmaceutical |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Penicillin antibiotic with beta-lactamase inhibitor |
| Route of Administration | Intravenous (IV) infusion. It is given over 30 minutes (or over 4 hours for extended infusion protocols) by a healthcare professional |
| Storage | Store the unopened vials at room temperature, 20°C to 25°C (68°F to 77°F). Protect from light and moisture. Once reconstituted or diluted, the solution should be used immediately or stored as per the manufacturer's instructions, typically refrigerated at 2°C to 8°C (36°F to 46°F) and used within 24 hours. Do not freeze. |
| Shelf Life | The shelf life of the unopened vial is typically 24 months from the date of manufacture. Refer to the product packaging for the exact expiry date. Once reconstituted, the stability is limited; follow the manufacturer's guidelines. |
| WHO Guideline | The World Health Organization (WHO) includes piperacillin/tazobactam in its Model List of Essential Medicines for the treatment of certain serious bacterial infections. It is recommended for use in hospitals for infections caused by susceptible bacteria, as part of antimicrobial stewardship programs. |
| ICMR Guideline | The Indian Council of Medical Research (ICMR) treatment guidelines recommend piperacillin/tazobactam for the management of various hospital-acquired and community-acquired infections, including complicated intra-abdominal infections, skin and soft tissue infections, and pneumonia, based on local resistance patterns. It is also recommended for empiric therapy in febrile neutropenia. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine combines piperacillin, a semisynthetic ureidopenicillin antibiotic, and tazobactam, a beta-lactamase inhibitor. Piperacillin exerts its bactericidal effect by binding to specific penicillin-binding proteins (PBPs) located inside the bacterial cell wall, inhibiting the final transpeptidation step of peptidoglycan synthesis. This leads to weakening of the cell wall and ultimately bacterial cell lysis and death. Tazobactam is a beta-lactamase inhibitor that irreversibly binds to and inactivates many beta-lactamase enzymes produced by bacteria, including those from the Richmond-Sykes classes II, III, IV, and V. By inhibiting these enzymes, tazobactam protects piperacillin from degradation, thereby extending its spectrum of activity against beta-lactamase-producing organisms such as Staphylococcus aureus, Haemophilus influenzae, Escherichia coli, and Klebsiella pneumoniae. However, tazobactam does not inhibit chromosomal cephalosporinases (AmpC) or carbapenemases. The combination is bactericidal and time-dependent, meaning its efficacy depends on the duration of time that the free drug concentration remains above the minimum inhibitory concentration (MIC) for the infecting organism.
Mechanism Steps
💡 How to Take clazact 4.5 injection
Strength: This medicine is available as a lyophilized powder for injection in vials containing piperacillin 4 g and tazobactam 0.5 g (total 4.5 g). It is reconstituted with a suitable diluent before intravenous administration.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine is 3.375 g (piperacillin 3 g + tazobactam 0.375 g) or 4.5 g (piperacillin 4 g + tazobactam 0.5 g) administered intravenously every 6 to 8 hours. For serious infections, the dose may be increased to 4.5 g every 6 hours. The duration of therapy depends on the type and severity of infection and clinical response. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. For patients with renal impairment, dose adjustment is required. The maximum daily dose is typically 18 g of piperacillin/2.25 g of tazobactam per day, but this may vary. |
| Pediatric Dosage | Pediatric dosing is not established from available information for all age groups. For children 2 months and older, the usual dose is based on weight and is typically 90 mg/kg (piperacillin component) every 6 to 8 hours, but this must be determined by a pediatrician. Consult a pediatrician for appropriate dosing. |
| Elderly Dosage | Elderly patients (65 years and older) may have decreased renal function, which can increase the risk of side effects. Dose adjustment based on creatinine clearance is recommended. Monitor renal function closely. No specific dose adjustment is required solely based on age if renal function is normal. |
| Renal Impairment | Dose adjustment is required for patients with renal impairment. For creatinine clearance (CrCl) greater than 40 mL/min, no adjustment is needed. For CrCl 20-40 mL/min, the usual dose is 3.375 g every 6 hours (or 4.5 g every 8 hours). For CrCl less than 20 mL/min, the dose is 2.25 g every 6 hours (or 3.375 g every 8 hours). For patients on hemodialysis, the dose is 2.25 g every 8 hours, with an additional dose of 0.75 g after each dialysis session. For peritoneal dialysis, the dose is 2.25 g every 12 hours. These are general guidelines; individualization by a clinician is essential. |
| Hepatic Impairment | No specific dose adjustment is recommended for hepatic impairment alone. However, patients with both hepatic and renal impairment should be monitored closely, and dose adjustments may be necessary based on clinical assessment. |
| Maximum Daily Dose | The maximum recommended daily dose is 18 g of piperacillin and 2.25 g of tazobactam (e.g., 4.5 g every 6 hours). Doses should not exceed this without careful clinical consideration. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of clazact 4.5 injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Warfarin | Major | |
| Methotrexate | Major | |
| Vecuronium | Major | |
| Gentamicin | Major | |
| Probenecid | Moderate | |
| Oral contraceptives | Moderate | |
| Allopurinol | Moderate | |
| Heparin | Moderate | |
| Furosemide | Moderate | |
| Antacids | Minor |
🚨 Major Interactions
- Warfarin
- Methotrexate
- Vecuronium
- Aminoglycosides (e.g., gentamicin, tobramycin)
- Probenecid
⚡ Moderate Interactions
- Oral contraceptives
- Allopurinol
- Heparin
- Loop diuretics (e.g., furosemide)
🍷 Alcohol Interaction
Alcohol should be avoided while receiving this medicine. Although there is no direct interaction that reduces the efficacy of the antibiotic, alcohol can worsen side effects such as nausea, vomiting, and dizziness, and may increase the risk of liver toxicity. It can also impair the immune system, potentially slowing recovery from infection.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known hypersensitivity to piperacillin, tazobactam, or any other penicillin or beta-lactam antibiotic","History of severe allergic reaction (e.g., anaphylaxis) to any beta-lactam antibiotic","Concurrent use with other beta-lactam antibiotics that may increase risk of neurotoxicity","Patients with a history of Clostridioides difficile-associated diarrhea"]
⚠️ Warnings & Precautions
["Serious allergic reactions, including anaphylaxis, can occur. Ask about previous hypersensitivity to penicillins, cephalosporins, or other allergens before starting therapy.","Clostridioides difficile-associated diarrhea may occur during or after treatment. If severe diarrhea develops, consider this diagnosis and manage appropriately.","Seizures have been reported, especially in patients with renal impairment. Dose adjustment is necessary for renal impairment.","Hematological effects, including leukopenia, neutropenia, and thrombocytopenia, have been reported. Monitor blood counts during prolonged therapy.","Renal toxicity, including acute kidney injury, has been reported. Monitor renal function and adjust dose in renal impairment.","Hepatotoxicity, generally mild and reversible, has been reported. Monitor liver enzymes.","Prolonged use may result in superinfection with resistant bacteria or fungi.","Patients with cystic fibrosis may have an increased risk of fever and rash.","Use with caution in patients with bleeding disorders or on anticoagulants due to risk of prolonged bleeding time.","The safety and efficacy in pediatric patients have not been established for all indications; use with caution."]
🤱 Lactation Safety
Piperacillin is excreted in human milk in low concentrations. Tazobactam is also excreted in human milk. There is potential for serious adverse reactions in the breastfed infant, including alteration of gut flora, diarrhea, and thrush. The decision to breastfeed during treatment should be made with a doctor, considering the importance of the medicine to the mother and the potential risks to the infant. Some sources recommend pumping and discarding breast milk during treatment and for 24 hours after the last dose.
💊 Overdose Management
Overdose with this medicine can lead to increased side effects, particularly neurological effects such as seizures, and gastrointestinal symptoms. There is no specific antidote. Management should be symptomatic and supportive. Piperacillin and tazobactam are both removed by hemodialysis. In case of overdose, discontinue the drug, monitor vital signs, and provide supportive care. Contact a poison control center or emergency department immediately.
⏰ Missed Dose
This medicine is administered by a healthcare professional in a hospital or clinic setting. If you miss a scheduled dose, inform your healthcare provider as soon as possible. They will determine the appropriate action, which may include administering the dose if it is not too close to the next scheduled dose, or skipping it if it is almost time for the next dose. Do not attempt to self-administer or double the dose.
Additional Safety Advice
This medicine must only be given by a healthcare professional in a hospital or clinic setting. Before starting treatment, inform your doctor about all your medical conditions, especially kidney disease, liver disease, bleeding disorders, or allergies to antibiotics. Provide a complete list of all medicines you are taking, including prescription, over-the-counter, and herbal products, as this medicine can interact with many drugs. Your kidney function, liver function, and blood counts should be monitored during treatment, especially if you are on prolonged therapy. Do not stop treatment early even if you feel better, as this can lead to relapse and antibiotic resistance. If you experience severe diarrhea, rash, swelling, or difficulty breathing, seek immediate medical attention. Avoid alcohol while receiving this medicine as it may increase the risk of certain side effects. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are more likely to have decreased renal function, which can increase the risk of side effects such as seizures and kidney injury. Dose adjustment based on creatinine clearance is essential. Monitor renal function closely and watch for signs of confusion or seizures.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, discuss with your doctor before starting this medicine. It is generally recommended to use this medicine during pregnancy only if clearly needed. Effective contraception is advised during treatment if you are of childbearing potential.
🏥 Post-Surgery Considerations
This medicine is often used after surgery to prevent or treat infections. It is important to monitor for signs of infection, such as fever, redness, or discharge from the surgical site. Complete the full course as prescribed.
🦷 Dental Procedures
Inform your dentist if you are receiving this medicine, as it may affect the balance of bacteria in your mouth and increase the risk of oral thrush. Good oral hygiene is recommended.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
While receiving this medicine, you may feel weak or dizzy. Avoid strenuous exercise until you have fully recovered. Light activity like walking is encouraged if you feel up to it, but consult your doctor before resuming intense workouts.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine is given in a hospital setting, so you will likely need to take time off work during treatment. You may experience fatigue, dizziness, or nausea, which can affect your ability to drive or operate machinery. It is advisable to rest and avoid driving until you feel fully recovered.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor. The duration of treatment is determined by your doctor based on the infection and your response. Stopping early can lead to relapse and antibiotic resistance. If you experience severe side effects, your doctor may decide to stop the medicine and switch to an alternative.
📅 Long-Term Use Effects
Long-term use of this medicine can lead to antibiotic resistance, superinfections with fungi or resistant bacteria, and rarely, blood disorders or kidney problems. Prolonged therapy requires regular monitoring of renal function, liver enzymes, and blood counts. It should be used only for as long as necessary and de-escalated based on culture results.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Depending on the infection and culture results, other antibiotics such as cephalosporins, carbapenems, or fluoroquinolones may be used.
Evidence: Well-establishedFor abscesses or infected collections, surgical drainage may be necessary in addition to antibiotics.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There are no specific vaccine interactions with this medicine. However, it is always advisable to keep vaccinations up to date, especially for pneumonia and influenza, to prevent infections that may require antibiotics.
📦 Storage Guide
✅ DO
Store unopened vials at room temperature (20-25°C)
❌ DON'T
Do not freeze the vials
✅ DO
Protect from light and moisture
❌ DON'T
Do not store in bathroom
✅ DO
Use reconstituted solution within the recommended time
❌ DON'T
Do not use if the solution is cloudy or has particles
✈️ Traveling with This Medicine
This medicine is administered in a hospital or clinic setting, so travel is not typically applicable. If you are traveling after completing therapy, carry a copy of your prescription and medical records. If you need to continue treatment while traveling, arrange for a healthcare facility at your destination to administer the infusion. Carry the medicine in its original packaging with the prescription. Store at room temperature, away from direct sunlight. Check with airlines and customs about carrying injectable medicines.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start feeling better within 24 to 72 hours after starting treatment, but it may take longer depending on the severity of the infection. It is important to complete the full course as prescribed.
A: No, this medicine must be given intravenously by a healthcare professional in a hospital or clinic setting.
A: Report any side effects to your doctor or nurse immediately. Mild side effects like nausea or diarrhea may be managed symptomatically, but severe reactions require urgent medical attention.
A: This medicine should be used during pregnancy only if clearly needed. Discuss the risks and benefits with your doctor.
A: It can be used in children 2 months and older, but the dose is based on weight and must be determined by a pediatrician.
🤔 Common Patient Concerns
🔄 Substitutes for clazact 4.5 injection
View AllAlternative brands with exact same active ingredient:
-
zobapip 4000mg/500mg injectionBasil Pharma ₹38.00 92.3% CHEAPER
-
kosepip-tz injectionKosmed Formulations ₹39.38 92% CHEAPER
-
piprataz 4000 mg/500 mg injectionAbbott ₹126.38 74.2% CHEAPER
-
Tazohit-P InjectionVostro Critical Care ₹131.00 73.3% CHEAPER
-
Reezo 4000mg/500mg InjectionReco Drugs ₹150.00 69.4% CHEAPER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can be taken orally.
Fact: This medicine is only available as an intravenous injection and must be given by a healthcare professional. - Myth: This medicine is safe for everyone.
Fact: It is contraindicated in patients allergic to penicillins and requires dose adjustment in kidney disease. - Myth: This medicine can cure viral infections like the flu.
Fact: This medicine is an antibiotic and is only effective against bacterial infections, not viruses. - Myth: You can stop this medicine as soon as you feel better.
Fact: You must complete the full course as prescribed to prevent relapse and antibiotic resistance.
🔄 Alternative Options
Generic Alternatives
- Piperacillin and Tazobactam for Injection
Brand Alternatives
- Durataz 4000 mg/500 mg Injection