pobix 500000iu injection - Polymyxin B (500000IU) medicine

Hixpoly 5L Injection (Polymyxin B 500000IU): Complete Guide

No reviews yet
🏭 Concord Biotech Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for serious Gram-negative infections
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Decreased urine output or no urine output
  • Swelling in legs, ankles, or feet
  • Difficulty breathing or shortness of breath
  • Severe dizziness or fainting
  • Numbness or tingling in hands or feet
  • Muscle weakness or paralysis
  • Rash, itching, or swelling of face, lips, or throat

If experiencing severe symptoms, call emergency services immediately.

What is pobix 500000iu injection used for?

This medicine is a polymyxin antibiotic injection used to treat serious multidrug-resistant Gram-negative bacterial infections. It works by disrupting bacterial cell membranes and is given by healthcare professionals in hospital settings.

  • Generic Name: Polymyxin B (500000IU)
  • Manufacturer: Concord Biotech Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 pobix 500000iu injection के बारे में (Hindi Summary)

उपयोग: यह दवा पॉलीमिक्सिन बी का इंजेक्शन है, जिसका उपयोग गंभीर जीवाणु संक्रमणों के इलाज के लिए किया जाता है, विशेष रूप से उन संक्रमणों में जो अन्य एंटीबायोटिक्स के प्रति प्रतिरोधी होते हैं। यह अस्पताल में डॉक्टर द्वारा दी जाती है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में गुर्दे की समस्या, नसों में झुनझुनी, चक्कर आना, और इंजेक्शन स्थल पर दर्द शामिल हैं। गंभीर मामलों में गुर्दे की क्षति या सांस लेने में कठिनाई हो सकती है।

सुरक्षा सलाह: यह दवा केवल अस्पताल में डॉक्टर या नर्स द्वारा दी जानी चाहिए। इसे स्वयं न लें। इलाज के दौरान गुर्दे की कार्यप्रणाली की नियमित जांच कराएं। किसी भी असामान्य लक्षण को तुरंत डॉक्टर को बताएं।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 pobix 500000iu injection Uses & Benefits

[{"condition":"Multidrug-resistant Gram-negative infections","description":"Used to treat serious infections caused by bacteria such as Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumoniae that are resistant to other antibiotics.","evidence":"Well-established"},{"condition":"Complicated urinary tract infections","description":"Effective against resistant Gram-negative bacteria causing urinary tract infections, especially when other options are limited.","evidence":"Well-established"},{"condition":"Bloodstream infections (bacteremia)","description":"Used in hospitalized patients with bloodstream infections caused by multidrug-resistant Gram-negative organisms.","evidence":"Well-established"},{"condition":"Hospital-acquired and ventilator-associated pneumonia","description":"Prescribed for severe pneumonia caused by resistant Gram-negative bacteria, often in intensive care settings.","evidence":"Well-established"},{"condition":"Meningitis","description":"May be used intrathecally or intravenously for meningitis caused by resistant Gram-negative bacteria.","evidence":"Limited"}]

Off-label uses: [{"condition":"Intraventricular administration for central nervous system infections","description":"Sometimes given directly into the brain ventricles for infections resistant to intravenous therapy.","evidence":"Limited"},{"condition":"Aerosolized use for lung infections","description":"Inhaled form may be used as an adjunct for resistant respiratory infections, though not FDA-approved for this route.","evidence":"Limited"}]

Primary treatment for: Multidrug-resistant Gram-negative infections

Also treats: Complicated urinary tract infections, Bloodstream infections, Hospital-acquired pneumonia, Meningitis

📋 Drug Information

Generic Name(s)Polymyxin B (500000IU)
Brand Namepobix 500000iu injection
ManufacturerConcord Biotech Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassOPHTHAL OTOLOGICALS
Action ClassCell membrane active agent
Route of AdministrationParenteral (intravenous or intramuscular injection)
StorageStore at 2°C to 8°C (refrigerate). Do not freeze. Protect from light. Once reconstituted, use immediately or store as directed by the manufacturer.
Shelf LifeNot established from the available information. Refer to the product label.
WHO GuidelineNot established from the available information. Polymyxins are listed as reserve antibiotics by WHO for multidrug-resistant infections.
ICMR GuidelineNot established from the available information. ICMR may recommend polymyxins for specific resistant infections based on local susceptibility patterns.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always reconstitute and administer this medicine as per institutional guidelines.
2
Monitor serum creatinine and BUN daily to detect early kidney injury.
3
Assess neurological status regularly for signs of paresthesia or weakness.
4
Avoid concurrent use with other nephrotoxic or neurotoxic agents when possible.
5
Adjust dose in renal impairment based on creatinine clearance.
6
Educate nursing staff about the importance of slow infusion to reduce side effects.
7
Document any history of allergy to polymyxins before administration.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Fever with chills
May be used for serious infections causing fever.
Likely Use
Burning urination
Used for complicated urinary tract infections.
Likely Use
Common cold
Not effective against viral infections.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionNot established from the available information. This medicine is administered parenterally and is not absorbed orally.
DistributionNot established from the available information. It is believed to distribute into extracellular fluid, but specific volume of distribution data are not available.
Protein BindingNot established from the available information.
MetabolismNot established from the available information. This medicine is not significantly metabolized and is primarily excreted unchanged.
Half-LifeNot established from the available information. The half-life may be prolonged in patients with renal impairment.
ExcretionThis medicine is primarily excreted unchanged by the kidneys. Renal impairment can lead to accumulation and increased risk of toxicity.
BioavailabilityNot applicable as this medicine is given by injection. Bioavailability is 100% when administered intravenously.
Onset of ActionNot established from the available information. The onset of bactericidal action is likely within hours after administration.
Peak Plasma TimeNot established from the available information. Peak plasma concentrations occur at the end of intravenous infusion.
Duration of ActionNot established from the available information. The duration of action depends on the dosing interval and renal function.

How It Works

This medicine works by binding to the lipopolysaccharide (LPS) molecules in the outer membrane of Gram-negative bacteria. This binding displaces calcium and magnesium ions that stabilize the membrane, leading to disruption of the membrane integrity. As a result, the bacterial cell contents leak out, causing cell death. This mechanism is bactericidal and is effective against many multidrug-resistant Gram-negative pathogens.

Mechanism Steps

1
Binding to LPS: This medicine binds to the lipid A portion of lipopolysaccharide in the outer membrane of Gram-negative bacteria.
2
Membrane disruption: The binding displaces divalent cations (calcium and magnesium), destabilizing the membrane.
3
Cell leakage: The disrupted membrane allows leakage of intracellular contents, leading to bacterial cell death.
4
Endotoxin neutralization: This medicine also binds to free endotoxin, potentially reducing the inflammatory cascade in sepsis.

💡 How to Take pobix 500000iu injection

Strength: Injection: Polymyxin B 500,000 IU per vial

1This medicine is given by a healthcare professional in a hospital or clinic.
2It is administered as an intravenous infusion or intramuscular injection.
3The dose and frequency are determined by your doctor based on your condition.
4Do not attempt to self-administer this medicine.
5Report any side effects to your healthcare provider immediately.

Dosage Information

Adult DosageThe dose of this medicine is individualized by a qualified clinician based on the type and severity of infection, patient weight, and kidney function. Typical adult doses range from 15,000 to 25,000 IU/kg per day, divided into two doses, given intravenously. For intrathecal use, doses are much lower. 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 kidney function and are at higher risk of toxicity. Dose should be adjusted based on renal function. Close monitoring is required.
Renal ImpairmentDose reduction is required in patients with renal impairment. The dose should be adjusted based on creatinine clearance. Monitoring of kidney function is essential.
Hepatic ImpairmentNo specific dose adjustment is established for hepatic impairment. Use with caution.
Maximum Daily DoseNot established from the available information. The maximum daily dose should not exceed the recommended range and must be determined by a clinician.

Dosage Timeline

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

🍽️ Food Timing Guide

No specific food interactions
No restrictions
This medicine is given intravenously and does not interact with food.

⏰ What to Do If You Miss a Dose

📌 You are in the hospital and a dose is delayed
→ Inform your nurse or doctor immediately.
💡 They will adjust the schedule as needed.
📌 You are self-administering at home and miss a dose
→ Contact your healthcare provider for instructions.
💡 Do not double dose.

⚠️ Side Effects of pobix 500000iu injection

✅ Common Side Effects

Nephrotoxicity (kidney damage) (Common (up to 20-30%))
Monitor kidney function regularly. Report decreased urine output or swelling.
Neurotoxicity (nerve damage) (Common (up to 10-20%))
Report numbness, tingling, dizziness, or muscle weakness to your doctor.
Injection site reactions (Common)
Apply cold compress if needed. Inform nursing staff if pain persists.

🚨 Serious Side Effects

Acute kidney injury (Uncommon (5-10%))
Seek immediate medical attention if you notice decreased urine output, swelling, or confusion.
Respiratory paralysis due to neuromuscular blockade (Rare (<1%))
Seek emergency care if you experience difficulty breathing or muscle weakness.
Anaphylaxis (Rare (<0.1%))
Get emergency help immediately if you have rash, swelling, or difficulty breathing.

⚠️ Rare Side Effects

Severe allergic reactions
Discontinue and seek emergency care.
Neuromuscular blockade leading to prolonged paralysis
Requires immediate medical intervention.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Gentamicin Major
Vecuronium Major
Amphotericin B Major
Furosemide Moderate
Ceftazidime Moderate
Ibuprofen Moderate
Cyclosporine Major
Succinylcholine Major
Atropine Minor
Warfarin Minor

🚨 Major Interactions

  • Aminoglycoside antibiotics (e.g., gentamicin, amikacin)
  • Neuromuscular blocking agents (e.g., vecuronium, succinylcholine)
  • Nephrotoxic drugs (e.g., amphotericin B, cyclosporine, NSAIDs)

⚡ Moderate Interactions

  • Loop diuretics (e.g., furosemide)
  • Cephalosporins

🍷 Alcohol Interaction

No specific interaction with alcohol is established, but alcohol may worsen kidney or nerve function. Avoid alcohol during treatment.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to polymyxin B or any component of the formulation","Severe renal impairment without close monitoring","Concurrent use with other nephrotoxic or neurotoxic drugs unless necessary"]

⚠️ Warnings & Precautions

["Nephrotoxicity: Monitor kidney function closely. Dose adjustment may be needed.","Neurotoxicity: May cause numbness, tingling, dizziness, or muscle weakness. Report promptly.","Neuromuscular blockade: May cause respiratory paralysis, especially with concurrent muscle relaxants.","Superinfection: Prolonged use may lead to overgrowth of non-susceptible organisms.","Pregnancy and lactation: Use only if clearly needed.","Pediatric use: Safety and efficacy not fully established.","Elderly: Increased risk of toxicity due to reduced kidney function."]

🤱 Lactation Safety

Not established from the available information. This medicine may pass into breast milk. Consult your doctor before breastfeeding.

💊 Overdose Management

Overdose may cause severe kidney damage, nerve damage, and respiratory paralysis. There is no specific antidote. Treatment is supportive, including close monitoring of kidney function, respiratory support, and possibly hemodialysis to remove the drug. Contact a poison control center or emergency services immediately.

⏰ Missed Dose

This medicine is given by a healthcare professional in a hospital setting. If a dose is missed, inform your nurse or doctor immediately. Do not attempt to self-administer a double dose.

Additional Safety Advice

General Safety

This medicine must only be given by a healthcare professional in a hospital or clinic setting. Do not attempt to self-administer. Your doctor will monitor your kidney function and nerve function regularly through blood tests and clinical assessments. Inform your doctor immediately if you notice decreased urine output, swelling in your legs, unusual tiredness, numbness, tingling, or muscle weakness. Avoid taking other medicines that can harm the kidneys, such as certain pain relievers or aminoglycoside antibiotics, unless specifically approved by your doctor. Tell your doctor about all other medications, supplements, and herbal products you are taking. If you are pregnant, planning to become pregnant, or breastfeeding, discuss the risks and benefits with your doctor. This medicine may interact with muscle relaxants used during surgery, so inform your anesthesiologist if you are scheduled for a procedure. Do not stop treatment early without consulting your doctor, as this can lead to resistant infections.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of kidney and nerve toxicity due to reduced kidney function. Dose adjustment and close monitoring are required.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, discuss with your doctor. This medicine should be used during pregnancy only if clearly needed. Effective contraception is recommended during treatment.

🏥 Post-Surgery Considerations

This medicine may be used to treat or prevent surgical site infections caused by resistant bacteria. It may interact with muscle relaxants used during surgery, so inform your anesthesiologist.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine. It may interact with certain medications used in dental procedures. No specific precautions are established.

💚 Lifestyle Tips for Better Results

🏃
Stay well hydrated unless your doctor restricts fluids.
🥗
Follow a kidney-friendly diet if you have kidney issues.
😴
Avoid alcohol during treatment.
💧
Get plenty of rest to help your body fight infection.
🧘
Report any new symptoms promptly.
🌞
Wash your hands frequently to prevent new infections.

🏋️ Exercise Considerations

Avoid strenuous exercise during treatment, especially if you have muscle weakness or fatigue. Light activity like walking may be okay if you feel up to it. Consult your doctor before starting any exercise routine.

🥗 Diet Recommendations

Drink plenty of water to help flush your kidneys.
Eat a balanced diet rich in fruits and vegetables.
Limit salt intake to reduce fluid retention.
Avoid high-protein diets if you have kidney problems.
Include probiotics if you experience diarrhea.

💼 Impact on Daily Work & Life

This medicine is given in a hospital setting, so you will likely need to stay in the hospital during treatment. You should not drive or operate machinery if you feel dizzy or weak. Plan for time off work during the treatment period.

🛑 When to Stop This Medicine

Do not stop this medicine without your doctor's advice. Stopping early can lead to incomplete treatment and resistance. Your doctor will decide when to stop based on your response and kidney function.

📅 Long-Term Use Effects

Long-term use of this medicine may increase the risk of kidney damage and nerve damage. Regular monitoring of kidney function and neurological status is essential. If used for prolonged periods, dose adjustments may be needed. Discuss with your doctor about the duration of therapy.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Colistin

Another polymyxin antibiotic that may be used for similar infections.

Evidence: Well-established
Combination therapy

Using this medicine with other antibiotics may improve efficacy and reduce resistance.

Evidence: Limited

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interaction with vaccines is established. However, live vaccines should be avoided during active infection. Consult your doctor.

📦 Storage Guide

✅ DO

Store refrigerated at 2°C to 8°C

❌ DON'T

Do not freeze

✅ DO

Protect from light

❌ DON'T

Do not use if solution is discolored or contains particles

✅ DO

Use reconstituted solution immediately

❌ DON'T

Do not store reconstituted solution for long periods

✈️ Traveling with This Medicine

This medicine is typically administered in a hospital setting and is not for self-administration during travel. If you are discharged with a prescription for home infusion, carry it in its original packaging with a copy of your prescription. Store it refrigerated (2°C to 8°C) during travel using a cooler pack. Inform airport security about your medical need. Check customs regulations for carrying injectable antibiotics across borders.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 60-year-old man with ventilator-associated pneumonia caused by multidrug-resistant Acinetobacter.
He was started on this medicine after cultures showed resistance to other antibiotics. His kidney function was monitored closely, and the dose was adjusted. After 10 days, his infection improved, and he was gradually weaned off the ventilator.
💡 Lesson: Close monitoring of kidney function and dose adjustment are crucial for safe and effective use of this medicine.
👤 A 45-year-old woman with a complicated urinary tract infection caused by extended-spectrum beta-lactamase producing Klebsiella.
She received this medicine intravenously for 7 days. She experienced mild tingling in her fingers, which resolved after treatment ended. Her infection cleared completely.
💡 Lesson: Neurotoxicity can occur but is often reversible. Report any unusual symptoms to your doctor promptly.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Improvement may be seen within 48 to 72 hours, but the full course may last 7 to 14 days depending on the infection.

Q: Can I take this medicine orally?

A: No, this medicine is not absorbed orally and must be given by injection.

Q: What are the signs of kidney damage?

A: Decreased urine output, swelling in legs, and fatigue are signs. Report them immediately.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Will this medicine affect my kidneys?
  • How long will I need this injection?
  • Can I take this medicine at home?
  • What should I do if I feel tingling in my hands?
  • Is this medicine safe for my baby if I am breastfeeding?
  • Can I take other medicines while on this?

🔄 Substitutes for pobix 500000iu injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Polymyxin B is a first-line antibiotic for all infections.
    Fact: It is reserved for multidrug-resistant Gram-negative infections due to its toxicity.
  • Myth: Polymyxin B can be taken orally.
    Fact: It is not absorbed orally and must be given by injection for systemic infections.
  • Myth: Polymyxin B is safe for everyone.
    Fact: It can cause kidney and nerve damage, so it is used with caution and monitoring.

🔄 Alternative Options

Generic Alternatives

  • Polymyxin B injection (generic)

Brand Alternatives

  • Hixpoly 5L injection

📊 Comparison with Similar Medicines

[{"medicine":"Polymyxin B","class":"Polymyxin antibiotic","route":"Parenteral","main_use":"MDR Gram-negative infections","key_side_effect":"Nephrotoxicity"},{"medicine":"Colistin","class":"Polymyxin antibiotic","route":"Parenteral","main_use":"MDR Gram-negative infections","key_side_effect":"Nephrotoxicity"},{"medicine":"Gentamicin","class":"Aminoglycoside","route":"Parenteral","main_use":"Gram-negative infections","key_side_effect":"Nephrotoxicity, ototoxicity"}]

😊 Was this information helpful?

Browse Medicines A-Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory