What is a film coated tablets?
A film coating is a thin polymer-based coat that is typically sprayed on to a solid pharmaceutical dosage form, such as a tablet, capsule, pellet or granule. Film coating can impact both its appearance and its pharmacokinetics making it an essential process in making the final drug product.
What is the benefit of film coated tablets?
The purpose of film coating includes esthetic enhancement, increased shelf life, taste masking, moderating the release profile of active pharmaceutical ingredient (API), trade-marking, and protection of intellectual property. The thickness of the film is generally less than 100 μm.
Which material is commonly used in film coating of tablets?
Examples of plasticizers commonly used in film coating processes include: Polyols, such as glycerol (glycerin), polyethylene glycols (PEG 200 – 6000 grades) and propylene glycol.
Do film coated tablets dissolve?
The most common cause of poor dissolution performance after tablet film coating is exposure to common process conditions, in particular the high processing temperatures that are associated with aqueous film-coating processes.
How do film coated tablets work?
The coating is designed to hold together in acid conditions and break down in non-acid conditions and therefore release the drug in the intestines. There are three reasons for putting such a coating on a tablet or capsule ingredient: To protect the stomach from the drug. To protect the drug from the stomach.
How are film coated tablets made?
Film coating The process involves spraying of a solution of polymer, pigments and plasticizer onto a rotating tablet bed to form a thin, uniform film on the tablet surface. The choice of polymer mainly depends on the desired site of drug release (stomach/ intestine), or on the desired release rate.
What are disadvantages of coating?
The Disadvantages of Coatings Once a coating has been applied, it immediately begins a degradation process that will require touch-ups, maintenance, or even a complete reapplication. Coatings can also inhibit pump performance by causing obstacles or closing off passes and ports.
Why is film coating preferred over sugar coating?
But now a days it is replaced with film coating, because the sugar coating process was a skilled manipulative process and could last for even five days. The operator must be highly skilled for such coating. Hence film coating is preferred over sugar coating.
What are the methods of tablet coating?
Tablet coating techniques
- Tablet Wrapping or Enrobing.
- Hot-melt coating.
- Compression coating.
- Sugar coating.
- Film coating.
- Electrostatic coating.
Can you half film coated tablets?
Sugar or film coating – surrounds the tablet normally to make it taste better or easier to swallow. Crushing these types of tablets may make them to taste very unpleasant. Enteric coating – tablets with an enteric coating should never be crushed.
What is the purpose of an enteric coating on a tablet?
Enteric coating is a useful strategy for the oral delivery of drugs like insulin which rapidly degrade in the stomach, as it prevents the drug being released in the acidic conditions of the stomach before reaching the intestine.
Is film coating tablets safe?
We’ve examined the impact that coated tablets have on patients – and that is typically the first consideration that springs to mind. But from the manufacturer’s perspective, a key consideration for film coating is safety. Once a tablet is coated, it’s safer for anyone else who might handle it.
Do you have the film coating technology needed for your tablets?
Whether the desired function for your tablet or multiparticulate dosage is immediate release, enteric release and/or sustained release, we have the film coating technology needed to enhance, protect, or meet the desired release profile.
What is the film coating of API tablets?
The film coating is typically performed for cosmetic purposes, but the film coat is also sometimes used to modify the release of API and achieve the desired tablet performance. Film coating usually involves a process where tablets are sprayed with a pigment-containing polymer solution while being rotated in a dry air stream.
What is the coating procedure of tablets?
The procedure of coating tablets is a complex process that results in the forming of a thin layer around the tablet. This layer is in the range of 20 to 200 μm in thickness, or around 1 to 9% of the initial weight of the tablet.
How thick is the coating on a tablet?
This layer is in the range of 20 to 200 μm in thickness, or around 1 to 9% of the initial weight of the tablet. As a reference, a human hair is usually around 100 μm thick, much like the typical thickness of an immediate release coating.