Dry coating of soft gelatin capsules with HPMCAS. 2008

Matteo Cerea, and Anastasia Foppoli, and Alessandra Maroni, and Luca Palugan, and Lucia Zema, and Maria Edvige Sangalli
Istituto di Chimica Farmaceutica e Tossicologica "P. Pratesi", Universita degli Studi di Milano, Milan, Italy. matteo.cerea@unimi.it

Dry coating is an innovative powder-layering technique that enables the formation of coatings on solid dosage forms with no need for using water or organic solvents. This technique envisages the distribution of polymer powder blends onto substrate cores and the concurrent or alternate nebulization of liquid plasticizers. In this work, a dry coating process based on hydroxypropyl methylcellulose acetate succinate (HPMCAS) was set up in a rotary fluid bed equipment to prepare enteric-coated soft gelatin capsules. Promising results were obtained in terms of process feasibility and product characteristics, thus suggesting the possibility of advantageous applications for the investigated technique when dealing with gelatin capsule substrates.

UI MeSH Term Description Entries
D008747 Methylcellulose Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative. BFL,Celevac,Cellothyl,Cellulone,Citrucel,Cologel,Dacryolarmes,Methocel,Methyl Cellulose,Muciplasma,Cellulose, Methyl
D011208 Powders Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed) Powder
D002214 Capsules Hard or soft soluble containers used for the oral administration of medicine. Capsule,Microcapsule,Microcapsules
D005079 Excipients Usually inert substances added to a prescription in order to provide suitable consistency to the dosage form. These include binders, matrix, base or diluent in pills, tablets, creams, salves, etc. Excipient,Stabilizing Agent,Stabilizing Agents,Suspending Agent,Suspending Agents,Agent, Stabilizing,Agent, Suspending,Agents, Stabilizing,Agents, Suspending
D005780 Gelatin A product formed from skin, white connective tissue, or bone COLLAGEN. It is used as a protein food adjuvant, plasma substitute, hemostatic, suspending agent in pharmaceutical preparations, and in the manufacturing of capsules and suppositories. Gelafusal
D013678 Technology, Pharmaceutical The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients. Technology, Pharmacy,Pharmaceutic Technology,Pharmaceutical Technology,Pharmacy Technology,Technology, Pharmaceutic

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