Which drug should NOT be refrigerated during storage?

• A. Metronidazole
• B. Doxycycline
• C. Moxifloxacin
• D. Amiodarone

Answer: (C)

When considering the storage requirements for the listed medications, it's important to note that certain drugs have specific temperature conditions to maintain their stability and efficacy. Moxifloxacin is the correct choice for a drug that should not be refrigerated.

Moxifloxacin is a fluoroquinolone antibiotic that is typically stored at room temperature. Refrigeration could potentially impair its stability, which may lead to reduced effectiveness or cause the formulation to degrade. Therefore, it is essential to adhere to the recommended storage instructions for this medication to ensure its quality and effectiveness remain intact.

In contrast, other options, like metronidazole, doxycycline, and amiodarone, can tolerate refrigeration without compromising their quality. Metronidazole is often recommended to be stored in a cool environment, and while doxycycline is usually stored at room temperature, it does not have the same restrictions as moxifloxacin. Amiodarone, particularly in its injectable form, is often stored under refrigeration for stability purposes. Thus, understanding the appropriate storage conditions for these medications is crucial for pharmacists and healthcare providers.