Difficulty: Easy

Average Score: 100%

Which of the following is the most appropriate long-term storage temperature range for promethazine suppositories?

Rationale

Room temperature at 15°C to 30°C (59°F to 86°F) is the most appropriate long-term storage temperature range for promethazine suppositories.

Promethazine suppositories should be stored at room temperature to maintain their efficacy and stability. This temperature range prevents degradation while ensuring the suppositories remain effective for their intended use.

A (Freezer at -20°C to -10°C (-4°F to 14°F)) YOUR ANSWER

Storing promethazine suppositories in a freezer is not advisable as extreme cold can alter their chemical composition and efficacy. Freezing can cause the suppository base to become brittle, leading to potential breakage and compromised dosage delivery.

B (Refrigerator, at 2°C to 8°C (36°F to 46°F)) YOUR ANSWER

While refrigeration preserves many medications, it is not suitable for promethazine suppositories. The cold temperatures can lead to condensation, which may affect the stability and consistency of the suppository, making it less effective upon administration.

D (Warm, at 30°C to 40°C (86°F to 104°F)) YOUR ANSWER

Storing promethazine suppositories in a warm environment is also inappropriate, as high temperatures can lead to melting or degradation of the suppository base. This could result in an altered release mechanism and diminished therapeutic effectiveness.

Conclusion

Promethazine suppositories are best stored at room temperature within the range of 15°C to 30°C (59°F to 86°F). This temperature ensures stability and effectiveness, avoiding the detrimental effects associated with extreme cold or heat. Proper storage is critical for maintaining medication integrity and ensuring patient safety.

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