Question 27

An unreconstituted bottle of azithromycin stored at room temperature should remain stable until the manufacturer's printed expiration date.

An unreconstituted bottle of azithromycin can be stored at room temperature and is designed to remain stable until its expiration date as long as it is kept in appropriate conditions.

A) A vial of Humalog stored in the freezer

Humalog, an insulin product, should not be stored in the freezer as freezing can damage the medication. It is crucial for the stability and efficacy of insulin that it remains refrigerated, and freezing it could lead to a reduced shelf life.

B) A vial of Varivax stored under refrigeration

While Varivax (varicella vaccine) should be stored under refrigeration to maintain its effectiveness, it can lose stability if not kept at the correct temperature. Therefore, it may not be stable until its expiration date if refrigeration is not consistently maintained.

C) An unopened bottle of doxazosin stored in a patient's bathroom

Storing doxazosin in a bathroom is not advisable due to the high humidity and temperature fluctuations that often occur in such environments. This could potentially compromise the medication's stability and efficacy before its expiration date.

D) An unreconstituted bottle of azithromycin stored at room temperature

An unreconstituted bottle of azithromycin is stable when stored at room temperature, allowing it to retain its potency until the expiration date indicated by the manufacturer, provided it is kept away from excessive moisture and heat.

Conclusion

The correct answer is D, as unreconstituted azithromycin is specifically formulated to remain stable at room temperature until the expiration date, ensuring its effectiveness. Options A, B, and C fail to meet the stability requirements due to improper storage conditions, while D adheres to the necessary guidelines for maintaining medication integrity.