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ALKEM LAB - tablet - 15 S
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Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026
Medicines with the same active ingredient and strength as Zithium 500MG Tab.
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Zithium 500MG Tab
tablet - 500 mg - 5 S
₹124
₹24.74 per tablet
DRS CHOICE PHARMACEUTICALS · tablet - 500 mg - 3 S · Rx
₹70
₹23.20 per tablet
Azithromycin 500 mg
Treatment of susceptible bacterial infections such as acute bacterial sinusitis, pharyngitis/tonsillitis, community-acquired pneumonia, acute exacerbation of chronic bronchitis, otitis media, skin and soft tissue infections, and certain sexually transmitted infections (e.g., uncomplicated chlamydial urethritis/cervicitis) as prescribed.
Azithromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit. This stops bacterial growth and helps clear the infection.
Take orally exactly as prescribed by the doctor. Usually taken once daily; may be taken with or without food (take with food if stomach upset occurs). Swallow with water and complete the full course; avoid taking antacids containing aluminum/magnesium within 2 hours of the dose.
Common side effects of Zithium 500MG Tab may include:

ALKEM LAB - tablet - 15 S
Standard delivery

ALKEM LAB - capsule - 15 S
Standard delivery

ALKEM LAB - drop - 30 ml
Standard delivery

ALKEM LAB - syrup - 200 ml
Standard delivery

ALKEM LAB - tablet - 15 S
Standard delivery

ALKEM LAB - capsule - 15 S
Standard delivery
ALKEM LAB - tablet - 500 mg - 10 S
Standard delivery

ALKEM LAB - 10 S
Standard delivery
A substitute contains the same active ingredient (salt), in the same strength, as Zithium 500MG Tab. The medicine inside is the same — the brand name, manufacturer and price are what differ.
All medicines sold in India, branded or generic, must meet the quality standards set by the national drug regulator (CDSCO). A lower price does not mean lower quality.
Please confirm with your doctor or pharmacist before switching brands — they will check that the strength and form match your prescription.
Use only for bacterial infections (not viral). Complete the prescribed course to prevent resistance. Use with caution in liver disease, history of cholestatic jaundice/hepatic dysfunction with macrolides, myasthenia gravis, and in patients with QT prolongation/arrhythmias or electrolyte imbalance (risk of serious heart rhythm problems). Stop and seek medical help if severe diarrhea (possible C. difficile), allergic reaction, or severe skin reactions occur.