Pharmaceutical coating is a vital technique in
manufacturing pills and other medicines. As the pharmaceutical industry
develops, the coating techniques continue to move forward. Initially,
sugar-coating was very popular in order to give more likable taste and
more striking look to tablets, as well as alleviating the bitterness of
drugs that are not pleasant. These days, a lot of coating forms have
been developed, like tablet film coating system
which puts off the release of the drug until it gets to the intestines.
Although pharmaceutical coating is a complicated process, it continues
up till today to improve the stability or modify the release of drugs.
Modern
coatings make use of film coating made from cellulose derivatives like
hydroxyproply methylcellulose or other cellulose polymers like acrylic
polymers, cellulose ethers and infrequently-used materials like
polyvinyl alcohol or polyethylene glycols and other waxy materials. A
film coating is a thin, polymer-based coat that is applied to a tablet
and when the film structure is closely examined, it is frequently
non-homogenous, which is the result of intentional addition of insoluble
pigments for coloring and from the recurring coating process.
There
are four types of coating: sugar coating, film coating, micro
encapsulation and compression. Coating is usually the last process in
tablet manufacturing process. Sometimes, the process of splitting the
pills follows, which is done to produce a lower dose of the active
ingredient.
Since sugar coating process could take
up to five days, there was need to come up with alternative methods of
pharmaceutical coating. Some of the problems associated with sugar pills
are high level of required operator skills, lengthy process and
intricacies in labeling tablets with logo and product name. As a result
of this, a lot of changes have come into sugar coating, for example, the
use of atomizing systems for spray-on sugar coating, air suspension
techniques, more efficient drying systems and the use of aluminum dyes
to improve evenness of color. Compression coating was also developed
where core-coating material is compressed round the core of the pill.
There
has also been tremendous improvement in other medical device coatings
which has led to better service delivery in the industry. Since the
pharmaceutical industry is part of the medical field, it is important to
get it right with coating.
If you are looking for n effervescent tablet film coating system or other pharmaceutical tools like cartooning machine,tablet deduster, etc contact SaintyCo – a leading manufacturer of all pharma related instruments.
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