Azax 500 mg

Azax 500 mg contains azithromycin as azithromycin dihydrate which is a broad-spectrum macrolide antibiotic used to treat bacterial infections like sinusitis, pharyngitis/tonsillitis, otitis media, chlamydia, traveller’s diarrhea. It’s not effective against viruses like colds or flu. Azax 500 mg may work by binds to the 50S ribosomal subunit of susceptible bacteria. This blocks protein synthesis, stopping bacterial growth bacteriostatic. At high concentrations it can be bactericidal.

Key Features

How does Azax 500 mg work?

• Azithromycin binds to the 50S ribosomal subunit of susceptible bacteria. This blocks protein synthesis, stopping bacterial growth bacteriostatic. At high concentrations it can be bactericidal.
• Azithromycin gets taken up by white blood cells and fibroblasts.
• It kills bacteria as well as it also reduces inflammatory cytokines.

Azax 500 mg is effective against many gram-positive, gram-negative, and atypical bacteria like Streptococcus pneumoniae, Haemophilus influenzae, Chlamydia trachomatis, Mycoplasma pneumoniae.

Usage

 It can be used in treating:

• Respiratory infections like, sinusitis, pharyngitis/tonsillitis.
• Skin infections, otitis media.
• STIs like chlamydia, traveller’s diarrhea.

Dosage

• 1 hour before or 2 hours after meals for best absorption, but can take with food if stomach upset. Swallow whole with water.
• Finish the full course even if you feel better, to prevent resistance.

Dose may vary by age, weight, kidney/liver function, and infection. Only take the exact regimen your doctor prescribes.

Side Effects 

• Nausea
• Vomiting
• Diarrhea
• Abdominal pain
• Headache
• Irregular heart rhythm
• Jaundice
• Dark urine
• Severe fatigue
• Swelling
• Severe skin reaction

 Interactions

• Antacids with aluminium/magnesium take Azax 1h before or 2h after, they reduce absorption.
• QT-prolonging drugs amiodarone, sotalol, antipsychotics, fluoroquinolones. Additive risk of arrhythmia.
• Warfarin increased bleeding risk so it should be monitored.
• Digoxin, colchicine azithromycin increases levels lead to toxicity risk.
• Statins rare risk of rhabdomyolysis with some statins.
• Ergot derivatives can cause ergotism.

Pharmacokinetics

• Absorption 37% bioavailable. Food reduces rate but not extent. Peak plasma approx. 2-3 hours.
• Distribution Extensive tissue penetration. Concentrates in lungs, tonsils, prostate, WBCs. Levels in tissue is more than plasma. Very high volume of distribution.
• Metabolism Minimal liver metabolism. No CYP450 interactions.
• Half-life is approx. 68 hours due to tissue binding. This allows short 3-5 days courses that keep working 10 days.
• Excretion: Mostly unchanged in bile/feces. 6% via urine. No dose adjustment needed for mild renal impairment.

Precautions

• Don’t use if you’ve had macrolide allergy or cholestatic jaundice with azithromycin before.
• Avoid if you have known QT prolongation, uncorrected low K/Mg, slow heart rate, or take other QT drugs.
• Use cautiously. Stop if signs of hepatitis appear.
• Myasthenia gravis may can worsen muscle weakness.
• Pregnancy/Breastfeeding should avoid taking any such medications.
• Don’t use for viral infections. Misuse drives antibiotic resistance.

Conclusion

Azax 500 mg contains azithromycin as azithromycin dihydrate which is a broad-spectrum macrolide antibiotic used to treat bacterial infections like sinusitis, pharyngitis/tonsillitis, otitis media, chlamydia. It’s not effective against viruses like colds or flu. Azax 500 mg may work by binds to the 50S ribosomal subunit of susceptible bacteria. This blocks protein synthesis, stopping bacterial growth bacteriostatic. At high concentrations it can be bactericidal. It may show some side effects like Nausea, vomiting, diarrhea, abdominal pain, headache that may can vary, to avoid such side effects and interactions consult your healthcare provider prior using any such medications.

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