What is a "blister pack"?

A blister pack is indeed a type of packaging specifically designed to hold individual doses of medication. This method of packaging is widely used in the pharmaceutical industry because it allows for the protection of each dose from moisture and contamination, helping to maintain the integrity of the medication until it is ready for use.

Blister packs are typically made from a pre-formed plastic and may include a backing made of foil or paper, allowing for easy separation of the doses without compromising the remaining pills. This packaging style also provides visual confirmation of whether doses have been taken, making it beneficial for medication adherence.

The other options do not accurately define blister packs. While a large pack of multiple medications could exist, it does not refer to the individual dose aspect that blister packs embody. Special containers for liquid medications typically use different packaging solutions that accommodate liquids, rather than individually sealed doses. Refrigerated products often have specific requirements in their packaging that would not align with the standard use of blister packs.