If no storage requirements have been established, the drug should be stored:

• A. In the freezer
• B. At controlled room temperature
• C. In bright light
• D. On a shelf above heat

Answer: (B)

When no storage requirements are published, the safest default is controlled room temperature. This keeps the drug away from extremes that can degrade it—neither freezing nor excessive heat or light. Controlled room temperature, typically around 20-25°C (with small allowed variations), provides a stable environment that preserves potency and reduces the risk of chemical or physical changes. Storing in the freezer is unnecessary unless a label specifies cold storage, while exposure to bright light or heat can speed up degradation or cause instability. So, the best choice is to store at controlled room temperature.