Nizithro 500mg Tablet: 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
- Severe allergic reaction: rash, itching, swelling of face, lips, tongue, or throat, difficulty breathing.
- Signs of liver damage: yellowing of skin or eyes, dark urine, severe abdominal pain.
- Heart rhythm changes: palpitations, dizziness, fainting.
- Severe diarrhea with blood or mucus, which may indicate C. difficile infection.
- Persistent vomiting or inability to keep fluids down.
- Signs of kidney problems: decreased urine output, swelling in legs or feet.
If experiencing severe symptoms, call emergency services immediately.
What is nizithro 500mg tablet used for?
This medicine is an antibiotic used to treat bacterial infections such as pneumonia, bronchitis, sinusitis, and skin infections. It works by stopping the growth of bacteria. The usual adult dose is 500 mg once daily for 3 days, but dosing may vary based on the infection. Always complete the full course as prescribed.
- Generic Name: Information coming soon
- Manufacturer: Multiple manufacturers
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 nizithro 500mg tablet के बारे में (Hindi Summary)
उपयोग: यह दवा एज़िथ्रोमाइसिन नामक एंटीबायोटिक है, जिसका उपयोग बैक्टीरियल संक्रमणों के इलाज के लिए किया जाता है। यह निमोनिया, ब्रोंकाइटिस, साइनसाइटिस, गले के संक्रमण, त्वचा के संक्रमण और कुछ यौन संचारित संक्रमणों के इलाज में प्रभावी है। यह दवा बैक्टीरिया के प्रोटीन संश्लेषण को रोककर उनकी वृद्धि को रोकती है। इसे डॉक्टर के निर्देशानुसार पूरा कोर्स करना चाहिए, भले ही लक्षण जल्दी ठीक हो जाएं।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में दस्त, मतली, पेट दर्द, उल्टी और सिरदर्द शामिल हैं। ये आमतौर पर हल्के और अस्थायी होते हैं। गंभीर दुष्प्रभावों में एलर्जी, लिवर की समस्या और हृदय की धड़कन में बदलाव शामिल हो सकते हैं। यदि आपको लगातार दस्त, पीलिया, या दिल की धड़कन में गड़बड़ी हो, तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। पूरा कोर्स पूरा करें, भले ही आप बेहतर महसूस करें। बीच में दवा न छोड़ें। अन्य दवाओं के साथ इसके सेवन से पहले डॉक्टर को बताएं। शराब का सेवन न करें। यदि खुराक भूल जाएं, तो याद आते ही ले लें, लेकिन अगली खुराक का समय नजदीक हो तो छोड़ दें। दोहरी खुराक न लें। दवा को ठंडी और सूखी जगह पर रखें।
💊 nizithro 500mg tablet Uses & Benefits
[{"condition":"Community-acquired pneumonia","description":"Used to treat mild to moderate community-acquired pneumonia caused by susceptible bacteria such as Streptococcus pneumoniae, Haemophilus influenzae, and Mycoplasma pneumoniae.","evidence":"Well-established"},{"condition":"Acute bacterial exacerbation of chronic bronchitis","description":"Prescribed to treat flare-ups of chronic bronchitis caused by bacteria like Haemophilus influenzae and Moraxella catarrhalis.","evidence":"Well-established"},{"condition":"Acute bacterial sinusitis","description":"Effective against bacterial sinus infections when caused by susceptible organisms.","evidence":"Well-established"},{"condition":"Pharyngitis/tonsillitis","description":"Used as an alternative for streptococcal pharyngitis in patients allergic to penicillin.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Treats uncomplicated skin infections such as cellulitis, erysipelas, and impetigo caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Urethritis and cervicitis","description":"Used to treat sexually transmitted infections caused by Chlamydia trachomatis and Neisseria gonorrhoeae, often in combination with other antibiotics.","evidence":"Well-established"},{"condition":"Otitis media","description":"Prescribed for middle ear infections in children when other antibiotics are not suitable.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Bronchiolitis obliterans syndrome","description":"Sometimes used in lung transplant patients to manage bronchiolitis obliterans syndrome due to its immunomodulatory and anti-inflammatory effects.","evidence":"Limited"},{"condition":"Cystic fibrosis","description":"May be used long-term as an anti-inflammatory agent in cystic fibrosis patients, though evidence is mixed.","evidence":"Limited"},{"condition":"Acne vulgaris","description":"Occasionally prescribed for severe acne due to its anti-inflammatory properties, but not a first-line treatment.","evidence":"Limited"}]
Primary treatment for: Bacterial infections
Also treats: Community-acquired pneumonia, Acute bacterial exacerbation of chronic bronchitis, Acute bacterial sinusitis, Pharyngitis/tonsillitis, Skin and soft tissue infections, Urethritis/cervicitis, Otitis media
📋 Drug Information
| Generic Name(s) | Information coming soon |
| Brand Name | nizithro 500mg tablet |
| Manufacturer | Multiple manufacturers |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Macrolides |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C (59°F to 86°F). Keep in a dry place away from direct sunlight and moisture. |
| Shelf Life | 24 months from the date of manufacture. |
| WHO Guideline | The World Health Organization includes azithromycin in its Model List of Essential Medicines for the treatment of trachoma, yaws, and certain sexually transmitted infections. It is also recommended for the treatment of community-acquired pneumonia in children. |
| ICMR Guideline | The Indian Council of Medical Research recommends azithromycin as a first-line treatment for certain respiratory tract infections and sexually transmitted infections, based on local resistance patterns. |
👨⚕️ 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 works by binding to the 50S ribosomal subunit of susceptible bacteria, specifically to the 23S rRNA component. This binding inhibits the translocation step of protein synthesis, preventing the elongation of the polypeptide chain. As a result, bacterial protein production is halted, which stops bacterial growth and multiplication. This medicine is typically bacteriostatic but can be bactericidal at higher concentrations against certain organisms.
Mechanism Steps
💡 How to Take nizithro 500mg tablet
Strength: 500 mg immediate-release tablet
Dosage Information
| Adult Dosage | The usual adult dose of this medicine for most respiratory tract infections is 500 mg once daily for 3 days, or 500 mg on day 1 followed by 250 mg once daily on days 2 to 5. For sexually transmitted infections like chlamydia, a single 1 gram dose is often used. For skin infections, 500 mg once daily for 3 days may be prescribed. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Elderly patients may be more susceptible to QT prolongation and cardiac arrhythmias. Use with caution and monitor closely. Dose adjustments are not typically required based on age alone, but individualization by a clinician is essential. |
| Renal Impairment | No dose adjustment is recommended for patients with mild to moderate renal impairment (creatinine clearance >10 mL/min). For patients with severe renal impairment (creatinine clearance <10 mL/min), use with caution as pharmacokinetics may be altered. |
| Hepatic Impairment | No dose adjustment is recommended for patients with mild to moderate hepatic impairment. However, this medicine should be used with caution in patients with severe hepatic impairment due to the risk of hepatotoxicity. |
| Maximum Daily Dose | The maximum recommended daily dose is 500 mg for most indications, except for certain infections where a single 1 gram dose may be used. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of nizithro 500mg tablet
✅ 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 | |
| Ergotamine | Major | |
| Amiodarone | Major | |
| Digoxin | Moderate | |
| Cyclosporine | Moderate | |
| Simvastatin | Moderate | |
| Antacids | Minor |
🚨 Major Interactions
- Warfarin
- Ergotamine
- Class IA and III antiarrhythmics (e.g., quinidine, amiodarone)
- Antacids containing aluminum or magnesium
⚡ Moderate Interactions
- Digoxin
- Cyclosporine
- HMG-CoA reductase inhibitors (statins)
🍷 Alcohol Interaction
Alcohol may worsen certain side effects of this medicine, such as dizziness, drowsiness, and gastrointestinal upset. It is advisable to avoid alcohol while taking this medicine.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known hypersensitivity to azithromycin, erythromycin, or any macrolide antibiotic","History of cholestatic jaundice or hepatic dysfunction associated with prior azithromycin use","Concurrent use with ergotamine or dihydroergotamine"]
⚠️ Warnings & Precautions
["Serious allergic reactions, including anaphylaxis and severe skin reactions, have been reported. Discontinue and seek immediate medical attention if these occur.","Hepatotoxicity: Discontinue if signs of liver dysfunction occur.","QT prolongation: Use with caution in patients with known risk factors.","Clostridium difficile-associated diarrhea: May occur during or after treatment. If suspected, discontinue and treat appropriately.","Exacerbation of myasthenia gravis: Has been reported with azithromycin use.","Not effective for viral infections. Misuse can lead to antibiotic resistance."]
🤱 Lactation Safety
This medicine is excreted in human breast milk. Caution should be exercised when administered to a nursing woman. Consult your doctor to weigh the benefits and risks.
💊 Overdose Management
Overdose of this medicine may cause severe nausea, vomiting, diarrhea, and hearing loss. There is no specific antidote. Treatment should be symptomatic and supportive. Gastric lavage may be considered if ingestion is recent. Contact a poison control center or emergency department immediately.
⏰ Missed Dose
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.
Additional Safety Advice
Take this medicine exactly as prescribed by your doctor. Do not skip doses or stop early, even if you feel better. Complete the full course to prevent the infection from returning and to reduce the risk of antibiotic resistance. Inform your doctor about all other medicines you are taking, especially antacids, warfarin, and drugs that affect heart rhythm. Avoid alcohol while taking this medicine as it may worsen side effects. If you miss a dose, take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose. Store this medicine at room temperature away from moisture and heat. Keep out of reach of children.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients may be more susceptible to QT prolongation and cardiac arrhythmias. Use with caution and monitor closely. Dose adjustments are not typically required based on age alone, but individualization by a clinician is essential.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, consult your doctor before taking this medicine. It is classified as Pregnancy Category B and should be used only if clearly needed.
🏥 Post-Surgery Considerations
If you are undergoing surgery, inform your surgeon that you are taking this medicine. It may interact with anesthetics and other medications used during surgery.
🦷 Dental Procedures
Inform your dentist that you are taking this medicine before any dental procedure. It may interact with other medications and affect healing.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
While taking this medicine, you may experience dizziness or fatigue. Avoid strenuous exercise until you feel fully recovered. Light activities like walking are generally safe.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine may cause dizziness or drowsiness in some people. Avoid driving or operating heavy machinery until you know how it affects you. Most people can continue their daily activities, but take rest as needed.
🛑 When to Stop This Medicine
Do not stop taking this medicine without consulting your doctor, even if you feel better. Stopping early can lead to recurrence of infection and antibiotic resistance. If you experience severe side effects, contact your doctor immediately.
📅 Long-Term Use Effects
Long-term use of this medicine is not recommended unless specifically prescribed for conditions like cystic fibrosis. Prolonged use may lead to antibiotic resistance and alter gut flora. Regular monitoring of liver and kidney function may be required if used for extended periods.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Supportive care can help your body fight mild infections.
Evidence: Well-establishedMay help prevent antibiotic-associated diarrhea.
Evidence: Limited💉 Vaccination Considerations
💉 If You're Getting Vaccinated
This medicine does not interact with vaccines. However, if you are scheduled for a live vaccine, inform your doctor as antibiotics may affect the vaccine's effectiveness.
📦 Storage Guide
✅ DO
Store at room temperature (15-30°C)
❌ DON'T
Do not refrigerate unless specified
✅ DO
Keep in original container
❌ DON'T
Do not transfer to unmarked containers
✅ DO
Keep away from direct sunlight
❌ DON'T
Do not store in bathroom cabinet
✈️ Traveling with This Medicine
When traveling, carry this medicine in its original packaging along with a copy of your prescription. Store it in a cool, dry place away from direct sunlight. If crossing time zones, adjust dosing times gradually to maintain consistent intervals. Check local customs regulations regarding prescription medications before travel.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start feeling better within 24-48 hours, but it is important to complete the full course as prescribed.
A: Yes, you can take it with or without food. If it upsets your stomach, take it with a meal.
A: Take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.
A: It is classified as Pregnancy Category B. Use only if clearly needed and prescribed by your doctor.
A: It is advisable to avoid alcohol as it may worsen side effects like dizziness and stomach upset.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: Antibiotics can cure viral infections like the common cold.
Fact: This medicine is effective only against bacterial infections. It will not treat viral illnesses. - Myth: You can stop taking antibiotics once you feel better.
Fact: You must complete the full course to prevent the infection from returning and to reduce antibiotic resistance. - Myth: Antibiotics are safe to take without a prescription.
Fact: This medicine should only be taken when prescribed by a doctor for a specific bacterial infection.
🔄 Alternative Options
Generic Alternatives
- Azithromycin 500 mg tablet
Brand Alternatives
- Azithral 500
- Zithromax 500
- Azee 500
- Zithrox 500