Why do some meds require refrigeration?

• A. Refrigeration is needed for all meds to taste better.
• B. It is only for meds that are expensive.
• C. It is optional for all meds.
• D. To preserve potency and stability; temperature changes can degrade the drug.

Answer: (C)

Storing some medications in the fridge helps keep them potent and stable. Many drugs are chemically unstable at room temperature, and warmth can speed up degradation reactions, reducing effectiveness or creating harmful byproducts. Keeping them cold slows those changes, helping ensure the medicine works as intended when it’s used. This is especially true for biological products, vaccines, insulin, and certain reconstituted solutions, which are often kept in a controlled cold chain (typically 2–8°C). Not every medication needs refrigeration—many are stable at room temperature, and some even require freezing. Always follow the storage directions on the label or from the pharmacist, and if a medication has been kept outside the recommended range, check with a healthcare professional before using it.