A type of packaging with separate compartments for individual tablets or capsules, usually closed with foil. The number of chambers is not equivalent to the number of daily servings. The expiry date and storage conditions still result from the product labeling.
Separate packaging compartments
The blister holds the tablets or capsules in separate compartments covered by a closure. It can limit the contact of other pieces with the environment when removing one portion. However, the protective properties depend on the materials used, and not only on the shape of the packaging. Piercing or ungluing the chamber may change it. It's a good idea to keep the part with the batch number and expiry date, especially if you cut off a piece of the blister for travel. The appearance of the chamber alone should not be used to judge the durability of the product.
Removing a tablet or capsule well before use may change its storage conditions. A small travel box does not necessarily provide the same protection as the original compartment. It is worth keeping information about the identification of the preparation so as not to confuse similar-looking items.
Meaning and application
The blister helps portion the product units, but does not replace storage and use instructions. Upon receipt, check the condition of the packaging and markings. Don't put all your pills in an unlabeled container just for convenience.
In practice
Check that the name, date and batch number remain on the carton or blister. If you cut off a section, do not lose the data needed for identification. Remove the unit in the manner intended for the packaging, without damaging the other compartments.
Do not use chamber contents whose tightness or condition is questionable. Don't assume that the blister will keep each product warm or moist. Always check the conditions for a specific formulation, regardless of the packaging form.