What is the freezer temperature range for storing certain medications, according to USP guidelines?

The correct choice regarding the freezer temperature range for storing certain medications, according to USP guidelines, is that the temperature should be maintained between -20 to -10 degrees Celsius. This range ensures that medications requiring freezing conditions are kept sufficiently cold to maintain their stability and efficacy.

Medications that need to be stored in the freezer often include certain vaccines and biological products, which could degrade if not kept at the appropriate low temperatures. By adhering to this specified range, pharmaceutical professionals can help prevent the loss of potency or effectiveness of these products, ensuring patient safety and therapeutic effectiveness.

Other temperature ranges listed do not align with the USP's specifications for true freezing conditions. For instance, the range of -10 to 0 degrees Celsius may not be cold enough to truly qualify as "freezer" storage, whereas the ranges of 0 to 5 degrees Celsius and 5 to 15 degrees Celsius pertain to refrigeration and room temperature storage, respectively, which do not meet the specific requirements for medications that must be frozen.