In the pharmaceutical industry, the most single property of gelatin is the
strong reversible gel-forming characteristic.
Therefore gelatin is used to make the shells of hard and soft capsules for
medicines, dietary/health supplements, syrups, etc. It is highly
digestible and serves as a natural protective coating for medications.
From the 19th century, gelatin has been used variously in the pharmaceutical industry.
One of the most important features of the gelatin in the pharmaceutical industry is to form a strong reversible gel.
These features are widely used in the pharmaceutical industry that requires film formation.
Sol–Gel transition is an important characteristic of gelatin for manufacturing capsules, suppositories and is used for manufacturing kinds of tablets
as a binding, compounding agent.
Further, since the functional properties as a natural protective coating to be easily digestible and to prevent the loss of
function of the drug, primarily for pharmaceutical, such as for health foods soft capsules and hard capsules, tablets
and (Tablet) such coatings are used in the manufacture of tablets.