Patent · US Active

Metoprolol sustained-release composition and preparation method thereof

US10314794B2 · kind B2 · utility

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1References

17Claims

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Assignee

INSTITUTE OF PHARMACOLOGY AND TOXICOLOGY, ACADEMY OF MILITARY MEDICAL SCIENCES · CN

Inventors

Chunsheng Gao · Beijing, CN
Yuli Wang · Tianjin, CN
Meiyan Yang · Beijing, CN
Li Shan · Beijing, CN
Jingjing Dai · Beijing, CN
Yong Qian · Suzhou, CN
Yan Qiu · Marshalltown, US

Key dates

Filing date	Jun 23, 2015
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Jun 23, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P9/12
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a drug sustained-release composition, particularly a sustained-release composition comprising metoprolol and preparation method thereof. The invention also relates to a combination product comprising a sustained-release composition comprising metoprolol and a pharmaceutical composition comprising hydrochlorothiazide. The sustained-release composition comprising metoprolol according to the invention eliminates the phenomena of delayed release of such sustained-release compositions in the prior art, has a better drug release curve, and also have the advantages such as simple formula, easy operation, stable quality, strong controllability, and good reproducibility, and therefore have good application prospects.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.