Azithral 500 vs Zithrox 500: Azithromycin Brand Comparison & 3-Day Course
Compare Azithral 500 (Alembic) and Zithrox 500 (Macleods): active Azithromycin IP, bacterial eradication rates, throat infections, and generic options.
Azithral 500 (Alembic Pharmaceuticals) and Zithrox 500 (Macleods Pharmaceuticals) contain the identical active drug: Azithromycin Dihydrate IP 500mg. Both are macrolide antibiotics used for a 3-day or 5-day course to treat severe bacterial throat infections, pneumonia, sinusitis, and genital infections. They are therapeutically interchangeable.
1. Active Pharmacological Equivalence
Both brands inhibit bacterial protein synthesis by reversibly binding to the 50S ribosomal subunit of susceptible microorganisms. Both provide identical 68-hour tissue half-lives, allowing convenient once-daily dosing.
2. Stomach Upset & Food Interaction
Both brands can occasionally cause mild nausea, abdominal cramping, or diarrhea. Ingesting the tablet with a light meal minimizes gastric upset without significantly impacting bioavailability.
3. Jan Aushadhi Generic Substitute
Branded Azithral and Zithrox cost approximately ₹125 to ₹135 for a strip of 3 tablets. At Jan Aushadhi Kendras, certified Azithromycin 500mg tablets cost just ₹35.00 for a 3-tablet strip (73% savings).
Top 8 Essential Indian Medicines: Branded MRP vs. Jan Aushadhi Generic Comparison
Compare average Indian retail MRP of top branded formulations against government-certified PMBJP Jan Aushadhi bioequivalent generic prices and active salts. Verified against official PMBJP formularies, NPPA price caps, and CDSCO regulatory registries.
| Brand Name | Leading Manufacturer | Active Salt Formulation (IP) | Branded MRP | Jan Aushadhi Price | Savings % |
|---|---|---|---|---|---|
| Augmentin 625 Duo | GlaxoSmithKline Pharmaceuticals | Amoxicillin Trihydrate 500mg + Potassium Clavulanate 125mg IP | ₹220.00 | ₹58.00 | 74% |
| Dolo 650 | Micro Labs Ltd | Paracetamol (Acetaminophen) 650mg IP | ₹34.00 | ₹5.50 | 84% |
| Pantocid 40 | Sun Pharmaceutical Industries | Pantoprazole Sodium 40mg IP (Gastro-resistant) | ₹155.00 | ₹8.00 | 95% |
| Azithral 500 | Alembic Pharmaceuticals | Azithromycin Dihydrate 500mg IP | ₹132.00 | ₹24.00 | 82% |
| Glycomet 500 | USV Private Limited | Metformin Hydrochloride 500mg IP | ₹24.00 | ₹4.50 | 81% |
| Shelcal 500 | Torrent Pharmaceuticals | Elemental Calcium 500mg + Cholecalciferol (Vit D3) 250 IU IP | ₹134.00 | ₹16.00 | 88% |
| Telma 40 | Glenmark Pharmaceuticals | Telmisartan 40mg IP | ₹92.00 | ₹7.50 | 92% |
| Montair-LC | Cipla Ltd | Montelukast Sodium 10mg + Levocetirizine Dihydrochloride 5mg IP | ₹210.00 | ₹18.00 | 91% |
| Combined 8-Drug Essential Therapy Basket Total: | ₹1,001.00 | ₹141.00 | 85.9% Net Savings | ||
Frequently Asked Questions (Clinical & Regulatory)
Q1: Can I take Zithrox 500 if the medical store only has Azithral 500?
Yes, they contain the exact same chemical molecule in identical strength and can be interchanged safely.
Q2: Can Azithromycin be taken for viral sore throat from cold?
No. Azithromycin has zero antiviral activity and should never be used for uncomplicated viral colds or sore throats.
Q3: How does the CDSCO define bioequivalence when comparing two pharmaceutical formulations?
Bioequivalence is confirmed when two pharmaceutical products contain identical active therapeutic moieties and show no statistically significant difference in Cmax and AUC under single-dose fasting and fed pharmacokinetic studies within the 80% to 125% confidence interval.
Q4: When comparing two drugs in the same clinical class, what determines superior therapeutic choice?
Therapeutic selection depends on receptor selectivity, onset speed, elimination half-life, clearance pathway (hepatic CYP450 vs renal excretion), drug interaction liability, and clinical trial evidence regarding organ-specific outcomes.
Q5: Can patients interchange two bioequivalent branded formulations without loss of efficacy?
Yes. Formulations produced under Schedule M Good Manufacturing Practices containing identical active pharmaceutical salts and dissolution profiles can be interchanged safely under pharmacist guidance.
This clinical guide is authored and reviewed in accordance with the regulatory standards of the Indian Pharmacopoeia (IP), Central Drugs Standard Control Organization (CDSCO) drug schedules, and Pradhan Mantri Bhartiya Janaushadhi Pariyojana (PMBJP) bioequivalence guidelines. All therapeutic recommendations and drug interaction warnings are cross-referenced with official statutory publications.
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