Formulation having controlled, delayed release of active ingredient
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- MERCK PATENT GMBH
- Publication Date
- 2020-08-06
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
[0001] The present invention relates to novel pharmaceutical formulations which have controlled, delayed release of active ingredient, and to a process for the preparation of such formulations. The invention additionally relates to the use of these novel pharmaceutical administration forms as medicaments for the treatment of diseases which require delayed release of the active ingredient, such as hypertension, or asthmatic diseases.PRIOR ART
[0002] Propranolol belongs to the active ingredient group of beta blockers having antihypertensive, anti-anginal and anti-arrhythmic properties. Although this active ingredient was introduced into therapy as the first β-receptor blocker as long ago as 1964, and in the meantime a multiplicity of different derivatives in diverse medicament forms are known, especially in order to avoid undesired effects and in order to achieve certain differences in action, propranolol continues to be a frequently administered beta blocker.
[0003] The substance exhibits...