Diseased persons take various medicines on a daily basis. They could be the drugs prescribed by the doctor
because of some particular illness, but not always - frequently these are simply some vitamins.
Some patients, being curious about all sorts of things wonder how are those medicines packed and why in this way.
The medication is usually bought in a cardboard packaging. Inside, several blisters and the leaflet are put. Why blisters? Firstly, they protect the drug from external environment: humidity and dirt. Its material is not chosen randomly. It is plastic or aluminium. Polymers, like PVC and its mixtures with another chemicals are applied. They can be easily formed by special machines under high temperature conditions. After the wanted shape of the packaging is finished, the tablets are put inside it. Then, they are closed by the lid. It is typically made of aluminium or plastic foil. During tablet packaging process, a wide range of factors must be taken into account. The raw material which is applied must not react with the medicine. It ought to be tough enough to prevent the pills from cracking. Nevertheless, the final packaging must be easy to use. Older patients must be able to unpack it without any trouble, but not the children. It is not easy to invent this sort of blister.
Materials for medicine and pharmacy have to meet specific, strict requirements.