Patent · US Expired

Sustained-release drug preparation

US5030455A · kind A · utility

3Cited by
4References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 22, 1989
Grant dateJul 9, 1991
Priority date
Expiry dateAug 22, 2009

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K47/44
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A sustained-release drug preparation comprises a water-soluble drug, a lipidic substance and an oil as its essential components. The drug level in the blood is sustained at a preferable concentation for a long period of time.

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