title: The attempts of retarding the release of nitroglycerin from granules.
abstract: The effect of Eudragit S, RL, or RS and ethylcellulose on the rate of release of nitroglycerin from granules has been studied. It was shown that Eudragits (acryl resins) and ethylcellulose decrease the rate of release of nitroglycerin from granules. The retarding effect depends on the amount and the kind of a retarding agent. Eudragit RS was the most effective one.
mesh_terms: D000180:Acrylic Resins; D002482:Cellulose / Q000031:analogs & derivatives; D003692:Delayed-Action Preparations; D005780:Gelatin; D005996:Nitroglycerin; D011109:Polymethacrylic Acids; D013213:Starch; D013997:Time Factors
chemical_list: D000180:Acrylic Resins; D003692:Delayed-Action Preparations; D011109:Polymethacrylic Acids; C038300:methylmethacrylate-methacrylic acid copolymer; D005780:Gelatin; D002482:Cellulose; D013213:Starch; D005996:Nitroglycerin