Blister Pack — Texture Application Note

The increasing use of blister packs for unit dose packaging of tablets, capsules or lozenges in the pharmaceutical industry demands for good quality packaging. Blister packs should provide some degree of tamper resistance avoiding accidental opening during transportation and by children. A quality blister pack should be consistent in the force required to extract the tablet and easily opened by weaker patients and the elderly. The degree of stiffness of a blister pack will however affect its effectiveness. Measuring the required force to push-through a blister pack is therefore necessary.

The CT3 texture analyser utilises a hemispherical probe that simulates the force applied by the fingers to remove a tablet from a blister pack. Probes complimentary to the size and shape of the blister can also be manufactured to meet customer requirements.