What is the dispensed volume for azithromycin 1.5% ophthalmic solution?

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Last updated: October 28, 2026 • View editorial policy

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Azithromycin 1.5% Ophthalmic Solution Dispensed Volume

The dispensed volume for azithromycin 1.5% ophthalmic solution is 2.5 mL per bottle 1.

Product Specifications

The FDA-approved azithromycin 1.5% ophthalmic formulation (marketed as Azyter® in some regions) comes in a 2.5 mL sterile bottle 1. This volume is specifically designed to provide sufficient medication for the complete treatment course.

Storage and Shelf Life Considerations

Important practical points about this formulation:

  • Before opening: Store refrigerated at 36°F to 46°F (2°C to 8°C)
  • After opening: Can be stored at room temperature or refrigerated between 36°F to 77°F (2°C to 25°C)
  • Discard after 14 days of opening the bottle 1

Treatment Duration Context

The 2.5 mL volume provides adequate supply for the standard treatment regimen:

  • Days 1-2: 1 drop twice daily (8-12 hours apart)
  • Days 3-7: 1 drop once daily
  • Total: 9 drops per affected eye 1

This means a single 2.5 mL bottle contains sufficient medication for bilateral treatment with appropriate reserve, accounting for potential missed drops or spillage during administration.

Clinical Relevance

The 2.5 mL dispensing volume represents a practical formulation size that balances adequate treatment supply with the 14-day post-opening stability limitation, minimizing waste while ensuring treatment completion 1.

References

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.