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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