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An enteric coating is a polymer barrier applied to oral medication that prevents its dissolution or disintegration in the gastric environment. [1] This helps by either protecting drugs from the acidity of the stomach, the stomach from the detrimental effects of the drug, or to release the drug after the stomach (usually in the upper tract of the intestine). [2]
A film coating is a thin polymer-based coat that is typically sprayed onto solid pharmaceutical dosage forms, such as tablets, capsules, pellets or granules.Film coating can impact both its appearance and its pharmacokinetics making it an essential process in making the final drug product.
Tablets are easier to break accurately if scored, but there are devices called pill-splitters which cut unscored and scored tablets. Tablets with special coatings (for example, enteric coatings or controlled-release coatings) should not be broken before use, as this exposes the tablet core to the digestive juices, circumventing the intended ...
Coatings on a tablet or pellet may act as barriers to reducing the dissolution rate. Coatings may also be used to control where dissolution takes place. For example, enteric coatings only dissolve in the basic environment of the intestines. Drugs held in solution do not need to be dissolved before being absorbed.
Buccal tablets offer many advantages over other solid dosage forms also intended for oral administration (e.g. enteric-coated tablets, chewable tablets, and capsules). Buccal tablets can be considered in patients who experience difficulty in swallowing, since these tablets are absorbed into the blood stream between the gum and cheek.
Erythromycin is available in enteric-coated tablets, slow-release capsules, oral suspensions, ophthalmic solutions, ointments, gels, enteric-coated capsules, non enteric-coated tablets, non enteric-coated capsules, and injections. The following erythromycin combinations are available for oral dosage: [15] erythromycin base (capsules, tablets)
Esomeprazole, sold under the brand name Nexium [or Neksium] among others, [2] is a medication which reduces stomach acid. [11] It is used to treat gastroesophageal reflux disease, peptic ulcer disease, and Zollinger–Ellison syndrome.
It is available as delayed-release capsules or tablets and as esomeprazole sodium for intravenous injection/infusion. Oral esomeprazole preparations are enteric-coated, due to the rapid degradation of the drug in the acidic condition of the stomach. This is achieved by formulating capsules using the multiple-unit pellet system.