ampirok 500 mg/250 mg injection - Ampicillin (500mg) + Sulbactam (250mg) medicine

Ampirok 500 mg/250 mg Injection: Complete Medicine Guide

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🏭 Astrum Healthcare Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 22, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for approved indications.
Reviewed by
SaathiMed Expert Panel | Oct 22, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
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 or wheezing
  • Swelling of the face, lips, or throat
  • Severe rash or hives
  • Severe or persistent diarrhea
  • Seizures
  • Unusual bleeding or bruising
  • Decreased urine output

If experiencing severe symptoms, call emergency services immediately.

What is ampirok 500 mg/250 mg injection used for?

This medicine is a combination antibiotic injection containing Ampicillin and Sulbactam. It is used to treat a wide range of bacterial infections by killing bacteria and preventing their growth. It is administered by a healthcare professional.

  • Generic Name: Ampicillin (500mg) + Sulbactam (250mg)
  • Manufacturer: Astrum Healthcare Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 ampirok 500 mg/250 mg injection के बारे में (Hindi Summary)

उपयोग: यह दवा एम्पीसिलिन और सल्बैक्टम का संयोजन है, जिसका उपयोग विभिन्न प्रकार के जीवाणु संक्रमणों के इलाज के लिए किया जाता है। यह श्वसन तंत्र, मूत्र पथ, त्वचा, पेट और स्त्री रोग संबंधी संक्रमणों में प्रभावी है। यह इंजेक्शन के रूप में डॉक्टर या नर्स द्वारा दी जाती है। यह वायरल संक्रमण जैसे सर्दी-जुकाम के लिए प्रभावी नहीं है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन स्थल पर दर्द, दस्त, मतली, उल्टी, दाने और खुजली शामिल हैं। गंभीर दुष्प्रभावों में एलर्जी की प्रतिक्रिया, गंभीर दस्त, दौरे और रक्त विकार शामिल हो सकते हैं। यदि कोई गंभीर लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल योग्य स्वास्थ्य पेशेवर द्वारा ही दी जानी चाहिए। इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी चिकित्सीय स्थितियों, विशेषकर गुर्दे या यकृत की बीमारी और एलर्जी के बारे में बताएं। अपनी सभी दवाओं की जानकारी दें। इंजेक्शन खुद न लगाएं। यदि सांस लेने में कठिनाई, चेहरे या गले में सूजन, या गंभीर दाने जैसे लक्षण दिखें तो तुरंत आपातकालीन चिकित्सा सहायता लें। दस्त होने पर बिना डॉक्टर की सलाह के दस्त रोकने की दवा न लें। संक्रमण को पूरी तरह ठीक करने के लिए दवा का पूरा कोर्स पूरा करें।

💡 Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

💊 ampirok 500 mg/250 mg injection Uses & Benefits

[{"condition":"Respiratory tract infections","description":"Used to treat community-acquired pneumonia, acute exacerbations of chronic bronchitis, and other lower respiratory tract infections caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Urinary tract infections","description":"Effective against complicated and uncomplicated urinary tract infections caused by susceptible strains of Escherichia coli, Klebsiella, and other organisms.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Used for cellulitis, abscesses, and wound infections caused by susceptible Gram-positive and Gram-negative bacteria.","evidence":"Well-established"},{"condition":"Intra-abdominal infections","description":"Used in combination with other antibiotics for peritonitis, appendicitis, and other intra-abdominal infections.","evidence":"Well-established"},{"condition":"Gynecological infections","description":"Used for pelvic inflammatory disease and postpartum endometritis caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Bone and joint infections","description":"May be used for osteomyelitis and septic arthritis caused by susceptible organisms.","evidence":"Moderate"},{"condition":"Surgical prophylaxis","description":"Administered before certain surgical procedures to prevent postoperative infections.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Listeria monocytogenes infections","description":"Ampicillin is a preferred agent for Listeria infections, and sulbactam may be added for broader coverage, though this combination is not specifically approved for this indication.","evidence":"Limited"},{"condition":"Enterococcal infections","description":"May be used off-label for serious enterococcal infections when combined with other antibiotics.","evidence":"Limited"}]

Primary treatment for: Bacterial infections

Also treats: Respiratory tract infections, Urinary tract infections, Skin and soft tissue infections, Intra-abdominal infections, Gynecological infections

📋 Drug Information

Generic Name(s)Ampicillin (500mg) + Sulbactam (250mg)
Brand Nameampirok 500 mg/250 mg injection
ManufacturerAstrum Healthcare Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action Class
Route of AdministrationParenteral (intramuscular or intravenous injection)
StorageStore below 25°C. Protect from light. Do not freeze. Reconstituted solutions should be used immediately or stored as directed by the pharmacist.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always inquire about penicillin allergy before administering this medicine.
2
Adjust the dose in patients with renal impairment based on creatinine clearance.
3
Monitor for signs of anaphylaxis during and after injection.
4
Consider C. difficile infection if diarrhea develops during or after treatment.
5
Ensure the full course is completed to prevent resistance.
6
Use the reconstituted solution immediately; discard any unused portion.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Fever with cough and chest pain
This medicine is commonly prescribed for respiratory tract infections.
Likely Use
✅
Burning urination and frequent urination
This medicine is used for urinary tract infections.
Likely Use
✅
Redness, swelling, and pain in skin
This medicine is used for skin and soft tissue infections.
Likely Use
❌
Runny nose and sneezing
This medicine is not effective for viral infections like the common cold.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is administered by intramuscular or intravenous injection, so absorption is rapid and complete. After intramuscular injection, peak serum concentrations are achieved within 30 to 60 minutes. Intravenous administration provides immediate high serum levels.
DistributionAmpicillin and sulbactam are widely distributed into body tissues and fluids, including pleural fluid, peritoneal fluid, synovial fluid, and bile. Both agents cross the placenta and are excreted in breast milk in low concentrations. Penetration into cerebrospinal fluid is limited but increases when the meninges are inflamed.
Protein BindingAmpicillin is approximately 20% bound to plasma proteins, while sulbactam is about 38% bound.
MetabolismAmpicillin is partially metabolized in the liver to inactive metabolites. Sulbactam undergoes limited metabolism and is primarily excreted unchanged.
Half-LifeThe elimination half-life of ampicillin is approximately 1 to 1.5 hours, and that of sulbactam is about 1 hour. These half-lives are prolonged in patients with renal impairment.
ExcretionBoth ampicillin and sulbactam are primarily excreted unchanged in the urine via glomerular filtration and tubular secretion. Approximately 60-70% of ampicillin and 70-80% of sulbactam are recovered in the urine within 8 hours after administration.
BioavailabilityNot applicable for injectable formulations, as bioavailability is 100% by the intravenous route and nearly 100% by the intramuscular route.
Onset of ActionThe onset of action is rapid, with bactericidal effects beginning within 30 minutes after intravenous administration.
Peak Plasma TimePeak plasma concentrations are achieved immediately after intravenous injection and within 30-60 minutes after intramuscular injection.
Duration of ActionThe duration of action is typically 6 to 8 hours, depending on the dose and renal function, but dosing intervals are usually every 6 to 8 hours.

How It Works

Ampicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs) and blocking the cross-linking of peptidoglycan chains. This leads to bacterial cell lysis and death. Sulbactam is a beta-lactamase inhibitor that irreversibly binds to certain beta-lactamase enzymes produced by bacteria, preventing them from hydrolyzing and inactivating ampicillin. This extends the spectrum of ampicillin to include beta-lactamase-producing strains of Staphylococcus aureus, Haemophilus influenzae, Escherichia coli, Klebsiella species, and Bacteroides species.

Mechanism Steps

1
Binding to penicillin-binding proteins: Ampicillin binds to specific penicillin-binding proteins located on the inner membrane of the bacterial cell wall.
2
Inhibition of cell wall synthesis: This binding inhibits the transpeptidase enzyme responsible for cross-linking peptidoglycan, weakening the bacterial cell wall.
3
Beta-lactamase inhibition by sulbactam: Sulbactam irreversibly binds to beta-lactamase enzymes, preventing them from breaking down ampicillin.
4
Bacterial cell lysis: The weakened cell wall leads to osmotic lysis and death of the bacteria.

💡 How to Take ampirok 500 mg/250 mg injection

Strength: Each vial contains Ampicillin 500 mg and Sulbactam 250 mg as a sterile powder for injection.

1This medicine is administered by a healthcare professional only.
2It is given as an intramuscular injection into a large muscle or as an intravenous injection over 3-5 minutes or as an infusion over 15-30 minutes.
3The injection site should be rotated to prevent pain and tissue damage.
4Do not self-administer this medicine.
5Follow your doctor's instructions regarding the duration of treatment.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 1.5 g to 3 g (ampicillin 1 g to 2 g + sulbactam 0.5 g to 1 g) every 6 to 8 hours, administered intramuscularly or intravenously. The dose and frequency depend on the severity of the infection, the site of infection, and the patient's renal function. For severe infections, higher doses may be used. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may have reduced renal function, which may require dose adjustment. Monitor renal function and adjust dose accordingly. Dose must be individualized by a qualified clinician.
Renal ImpairmentIn patients with renal impairment, the dose and frequency should be adjusted based on creatinine clearance. For creatinine clearance 15-29 mL/min, the usual dose is every 12 hours. For creatinine clearance 5-14 mL/min, the usual dose is every 24 hours. For patients on hemodialysis, an additional dose should be given after dialysis. Dose must be individualized by a qualified clinician.
Hepatic ImpairmentNo specific dosage adjustment is established for hepatic impairment, but caution is advised. Monitor liver function. Dose must be individualized by a qualified clinician.
Maximum Daily DoseThe maximum recommended daily dose is 12 g (ampicillin 8 g + sulbactam 4 g) for adults with normal renal function. Dose must be individualized by a qualified clinician.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

No specific food interactions
No restrictions
This medicine is given by injection, so food does not affect its absorption.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Contact your healthcare provider to reschedule the dose as soon as possible.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose and wait for the next scheduled dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of ampirok 500 mg/250 mg injection

✅ Common Side Effects

Injection site pain (Common (5-10%))
Apply a cold compress to the site. It usually resolves within a day.
Diarrhea (Common (5-10%))
Stay hydrated. If diarrhea is severe or persists, consult your doctor.
Nausea (Common (5-10%))
Take small, frequent meals. If nausea is severe, inform your doctor.
Vomiting (Uncommon (1-5%))
Report to your doctor if vomiting occurs, as it may affect hydration.
Rash (Uncommon (1-5%))
Report any rash to your doctor. It may indicate an allergic reaction.
Itching (Uncommon (1-5%))
Avoid scratching. Consult your doctor if itching persists.

🚨 Serious Side Effects

Anaphylaxis (Rare (<0.1%))
Seek emergency medical help immediately if you experience difficulty breathing, swelling of the face or throat, or a severe rash.
Clostridioides difficile-associated diarrhea (Rare (<0.1%))
Contact your doctor if you develop severe or persistent diarrhea, abdominal pain, or fever. Do not take antidiarrheal medicines without medical advice.
Seizures (Rare (<0.1%))
Seek immediate medical attention if seizures occur, especially in patients with kidney impairment.
Blood dyscrasias (Rare (<0.1%))
Report any unusual bleeding, bruising, or signs of infection. Your doctor may monitor your blood counts.
Interstitial nephritis (Rare (<0.1%))
Seek medical attention if you experience decreased urine output, swelling, or blood in urine.

⚠️ Rare Side Effects

Hepatotoxicity
Report yellowing of skin or eyes, dark urine, or abdominal pain to your doctor.
Agranulocytosis
Seek medical attention if you develop fever, sore throat, or mouth ulcers.
Thrombocytopenia
Report unusual bleeding or bruising to your doctor.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Methotrexate Major
Allopurinol Major
Probenecid Moderate
Oral contraceptives Moderate
Aminoglycosides Moderate
Chloramphenicol Moderate
Tetracyclines Minor
Beta-blockers Minor

🚨 Major Interactions

  • Warfarin
  • Methotrexate
  • Allopurinol
  • Probenecid

⚡ Moderate Interactions

  • Oral contraceptives
  • Aminoglycosides
  • Chloramphenicol

🍷 Alcohol Interaction

Alcohol may increase the risk of liver toxicity and gastrointestinal side effects. It is advisable to avoid alcohol while receiving this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to ampicillin, sulbactam, or any penicillin or beta-lactam antibiotic","History of severe allergic reaction to any beta-lactam antibiotic","Infectious mononucleosis (increased risk of rash)"]

⚠️ Warnings & Precautions

["Serious and occasionally fatal hypersensitivity reactions have been reported. Before initiating therapy, inquire about previous hypersensitivity to penicillins, cephalosporins, and other allergens.","Clostridioides difficile-associated diarrhea may occur. If diarrhea develops, evaluate for this condition.","Use with caution in patients with renal impairment. Dose adjustment may be necessary.","Prolonged use may result in overgrowth of nonsusceptible organisms, including fungi.","Prescribing this medicine in the absence of a proven or strongly suspected bacterial infection is unlikely to provide benefit and increases the risk of drug-resistant bacteria."]

🤱 Lactation Safety

Ampicillin and sulbactam are excreted in human milk in low concentrations. Caution should be exercised when administered to a nursing woman. Monitor the infant for diarrhea, thrush, or rash.

💊 Overdose Management

Overdose with this medicine may cause gastrointestinal symptoms, seizures, and electrolyte imbalances. Treatment is symptomatic and supportive. Ampicillin and sulbactam can be removed by hemodialysis. In case of overdose, seek immediate medical attention.

⏰ Missed Dose

Since this medicine is administered by a healthcare professional, missed doses are unlikely. If you miss a scheduled dose, contact your doctor or nurse as soon as possible to reschedule. Do not attempt to self-administer a double dose.

Additional Safety Advice

General Safety

This medicine should only be administered by a qualified healthcare professional. Before receiving this medicine, inform your doctor about all your medical conditions, especially kidney disease, liver disease, or any allergies. Also, tell your doctor about all other medicines you are taking, including prescription, over-the-counter, and herbal products. Do not self-administer this injection. If you experience any signs of a severe allergic reaction such as difficulty breathing, swelling of the face or throat, or a severe rash, seek emergency medical help immediately. Diarrhea that is severe or persists may be a sign of a serious bowel infection; do not treat it with over-the-counter antidiarrheal medicines without consulting your doctor. Complete the full course of treatment as prescribed, even if you feel better, to prevent the development of antibiotic resistance.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more likely to have reduced renal function, which may require dose adjustment. They may also be more susceptible to side effects like diarrhea and allergic reactions. Monitor renal function closely.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before using this medicine. It is classified as Pregnancy Category B and should be used only if clearly needed. Discuss the risks and benefits with your healthcare provider.

🏥 Post-Surgery Considerations

This medicine is often used for surgical prophylaxis. If you have recently had surgery, inform your surgeon about any allergies and follow their instructions regarding antibiotic use.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine, as it may interact with other medications used during dental procedures. It may also be used prophylactically before dental procedures in patients at risk of infective endocarditis.

💚 Lifestyle Tips for Better Results

🏃
Stay well hydrated to help flush out the infection.
🥗
Get plenty of rest to support your immune system.
😴
Eat a balanced diet rich in fruits and vegetables.
💧
Avoid alcohol while on this medicine.
🧘
Practice good hygiene to prevent the spread of infection.
🌞
Complete the full course of antibiotics as prescribed.

🏋️ Exercise Considerations

This medicine may cause dizziness or fatigue. Avoid strenuous exercise until you feel better. Consult your doctor before resuming intense physical activity.

🥗 Diet Recommendations

Include probiotic-rich foods like yogurt to maintain gut health.
Stay hydrated with water and clear fluids.
Avoid spicy and oily foods if you have nausea or diarrhea.
Eat small, frequent meals if you have a reduced appetite.

💼 Impact on Daily Work & Life

This medicine may cause dizziness, fatigue, or diarrhea, which can affect your ability to work or drive. Avoid operating heavy machinery until you know how it affects you. Inform your employer if you need time off for treatment.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Complete the full course as prescribed, even if you feel better. If you experience severe side effects, contact your doctor immediately; they may adjust or stop the treatment.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to overgrowth of nonsusceptible organisms, including fungi, and may increase the risk of antibiotic resistance. Prolonged use may also cause blood dyscrasias, liver enzyme elevation, and renal impairment. Regular monitoring of blood counts, liver and kidney function is recommended during prolonged therapy.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Oral antibiotics

For mild infections, oral antibiotics like amoxicillin-clavulanate may be used instead of injections.

Evidence: Well-established
Other injectable antibiotics

Cephalosporins or fluoroquinolones may be alternatives for patients allergic to penicillin.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine may reduce the effectiveness of live bacterial vaccines like typhoid vaccine. Avoid vaccination with live organisms during treatment. Inactivated vaccines are generally safe.

📦 Storage Guide

✅ DO

Store below 25°C

❌ DON'T

Do not freeze

✅ DO

Protect from light

❌ DON'T

Do not expose to direct sunlight

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Use reconstituted solution immediately

❌ DON'T

Do not store reconstituted solution for later use

✈️ Traveling with This Medicine

When traveling with this medicine, carry it in its original packaging with the prescription label intact. Bring a copy of your prescription and a doctor&#039;s letter explaining the medical need. Keep it in your carry-on luggage to avoid temperature extremes. Store below 25°C and protect from light. If traveling across time zones, consult your doctor about adjusting the dosing schedule. Check customs regulations for carrying injectable medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 55-year-old man with community-acquired pneumonia
He was admitted to the hospital with high fever and cough. He was started on this medicine intravenously. His fever subsided within 48 hours, and he completed a 7-day course. He experienced mild diarrhea, which resolved after treatment.
💡 Lesson: This medicine is effective for severe respiratory infections when administered promptly. Mild side effects like diarrhea are common and usually self-limiting.
👤 A 30-year-old woman with a complicated urinary tract infection
She had a history of recurrent UTIs and was allergic to sulfa drugs. She was treated with this medicine intramuscularly for 5 days. Her symptoms improved significantly, and she had no allergic reactions.
💡 Lesson: This medicine is a good option for patients with penicillin-tolerant UTIs, but allergy history must be carefully checked.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts working within 30 minutes after injection, but you may start feeling better within 24 to 48 hours. Complete the full course as prescribed.

Q: Can I take this medicine if I am pregnant?

A: This medicine is classified as Pregnancy Category B. It should be used during pregnancy only if clearly needed. Consult your doctor.

Q: What are the common side effects?

A: Common side effects include injection site pain, diarrhea, nausea, vomiting, rash, and itching. Most are mild and resolve on their own.

Q: Can I drive after taking this medicine?

A: This medicine may cause dizziness. Avoid driving or operating machinery until you know how it affects you.

Q: Is this medicine safe for children?

A: Pediatric dosing is not established from available information. Consult a pediatrician.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine if I am allergic to penicillin?
  • How long does this medicine take to work?
  • Can I drink alcohol while on this medicine?
  • Is this medicine safe for my kidneys?
  • What should I do if I miss a dose?
  • Can I take this medicine with other antibiotics?

🔄 Substitutes for ampirok 500 mg/250 mg injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can cure viral infections like the flu.
    Fact: This medicine is an antibiotic and is only effective against bacterial infections. It does not treat viral infections.
  • Myth: You can stop taking this medicine as soon as you feel better.
    Fact: You must complete the full course as prescribed, even if symptoms improve, to prevent recurrence and antibiotic resistance.
  • Myth: This medicine is safe for everyone.
    Fact: This medicine is not safe for individuals allergic to penicillins or beta-lactam antibiotics. Always inform your doctor of any allergies.

🔄 Alternative Options

Generic Alternatives

  • Ampicillin + Sulbactam generic injections

Brand Alternatives

  • Ampirok 500 mg/250 mg injection

📊 Comparison with Similar Medicines

[{"medicine":"Ampicillin + Sulbactam","class":"Penicillin + beta-lactamase inhibitor","route":"Parenteral","spectrum":"Broad-spectrum, including beta-lactamase producers"},{"medicine":"Amoxicillin + Clavulanic acid","class":"Penicillin + beta-lactamase inhibitor","route":"Oral or Parenteral","spectrum":"Broad-spectrum, including beta-lactamase producers"},{"medicine":"Piperacillin + Tazobactam","class":"Penicillin + beta-lactamase inhibitor","route":"Parenteral","spectrum":"Extended-spectrum, including Pseudomonas"}]

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