Choice of material for blister pharmaceutical packaging is entirely dependent on the sensitivity of product from external elements like light, air, heat and moisture. Since every pharmaceutical product has individual degree of resistance, the type of storage and material are selected only after thorough tests and considering several factors. There are different categories and sub-categories of Blister packaging supplier, which are chosen as per their suitability with the product.

The main advantage of this type of packaging is the extended shelf life, due to protection against oxygen and humidity that it provides for these medicinal tablets and capsules, compared to conventional packaging in bottles and containers. With blister packaging, the tablet or capsule does not get exposed to external air and humidity until such time that the aluminium foil is broken. The aluminium foil is not supposed to be broken until just prior to the user ingesting the tablet or capsule.

In the case of conventional bottles and containers, all of the tablets or capsules inside that bottle or container are exposed to external air and humidity every time that the cap is taken off in order to take out just one of these tablets or capsules. This is the reason why when opening a food supplement or vitamin stored in a conventional bottle there is a smell that means that many of the ingredients that were in the capsule or tablet is being lost. In some cases because of the oxygen and humidity, the ingredients change their chemical form. This does not happen when buying food supplements in blister form because the tablets and capsules are protected from oxygen and humidity.

The second advantage of blister packs is the convenience to the user of being able to carry around in his or her pocket or handbag just one flat and light blister card of tablets instead of having to carry the whole bulky and heavy bottle. The need to carry tablets on one's person applies to many tablets, such as headache, anti-histamine, contraceptive, antacid, anti-inflammatory and heart tablets etc.

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