Patent No. EP2919815 (titled "A Pharmaceutical Composition Containing An Ace Inhibitor And A Calcium Channel Blocker") was filed by Adamed Pharma on Nov 12, 2013. The application was issued on Sep 6, 2017.
A stable pharmaceutical composition for treating hypertension comprises a blend of a powder and a granulate that are not physically separated. The powder contains an ACE inhibitor, specifically ramipril, perindopril, or their pharmaceutically acceptable salts, hydrates, and solvates. The granulate contains a calcium channel blocker, specifically amlodipine or its pharmaceutically acceptable salts, hydrates, and solvates. Both components include one or more excipients, such as fillers, binders, disintegrants, and glidants. The composition maintains active substance degradants at pharmaceutically acceptable levels without requiring stabilizing or pH-adjusting agents, minimizing mechanical stress on the ACE inhibitor. The blend can be formulated into unit dosage forms, including tablets, capsules, sachets, pellets, or oral solutions.

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