Press coated DHP tablets
DCFirst Claim
Patent Images
1. A solid medicament preparation having a long-lasting action in the form of a press coated tablet which contains a sparingLy soluble dihydropyridine, the press coated tablet comprising(a) a core which contains a dihydropyridine in rapid-release form, and(b) a coat around the core, the coat containing a dihydropyridine in slow-release form.
2 Assignments
Litigations
0 Petitions
Accused Products
Abstract
The invention relates to solid pharmaceutical preparations which have a long-lasting action and are for dihydropyridines in the form of a press coated tablet, and a process for their preparation.
-
Citations
12 Claims
-
1. A solid medicament preparation having a long-lasting action in the form of a press coated tablet which contains a sparingLy soluble dihydropyridine, the press coated tablet comprising
(a) a core which contains a dihydropyridine in rapid-release form, and (b) a coat around the core, the coat containing a dihydropyridine in slow-release form.
-
12. A process for manufacturing solid medicament preparations having a long lasting action containing a sparingly soluble dihydropyridine in form of a press coated tablet comprising:
-
(a) a core which contains a dihydropyridine in rapid-release form, and (b) a coat around the core, the coat containing a dihydropyridine in slow-release form, the core having been produced by mixing the active substance and a filler, granulating this mixture by adding an aqueous solution of binder, drying and sieving the granulate, adding a lubricant and pressing to form the core, or forming the core by direct compression or by roller compaction plus compression, producing the granule for the coat by spraying an aqueous suspension containing the active substance and a binder on the solid ingredients, drying and sieving, mixing with a lubricant, press coating the granules for the coat upon the core, and optionally film coating the obtained press coated tablet with lacquers which optionally contain a small amount of the active substance up to a maximum of 20% of the total amount of the active substance in the whole composition.
-
Specification