Čes. slov. farm. 2019, 68(5):183-197 | DOI: 10.36290/csf.2019.021
(Meth)acrylate copolymers of Eudragit® type in oral tablet technology
- 1 Department of Pharmaceutics, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
- 2 Department of Drug Technology and Social Pharmacy, Faculty of Pharmacy, Lithuanian University of Health Sciences, Kaunas, Lithuania
This review focuses on the characterization of (meth)acrylate copolymers - Eudragit®, describing their thermal treatment behaviour, possible interactions between cationic and anionic polymers, incompatibilities related to Eudragits® and their use in the pharmaceutical technology of oral tablets. In summary, Eudragit® copolymers are divided into soluble ones, insoluble ones and a combination of these two types. The combination of soluble and insoluble poly(meth)acrylate gave a new type of polymer, Eudragit® FL. In oral tablet technology, Eudragits® are widely used in matrix tablets, either alone or in combination, where they mainly provide sustained drug release. To a lesser extent, Eudragits® are used in gastroretentive systems. Moreover, Eudragits® are also of great importance in coated tablets technology, where these enteric polymers provide specific drug targeting to certain parts of the digestive tract, mainly to the small intestine or colon. Important systems such as CODESTM and MMX® technology are mentioned. Last but not least an overview table of currently available oral medicinal products on the Czech market, where at least one of the Eudragits® was used as a film-forming agent, is included.
Keywords: Eudragit®; matrix tablets; floating tablets; film-coating tablets; acidoresistant tablets; burst effect; prolonged drug release; colon drug delivery
Grants and funding:
This work was supported by the project ITA VFU Brno: FaF/Vetchý/ITA 2019.
Received: August 25, 2019; Accepted: September 23, 2019; Published: May 1, 2019 Show citation
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