DRUG SUSTAINED RELEASE AGENT - OLYMPUS OPTICAL CO

Title:

DRUG SUSTAINED RELEASE AGENT

Document Type and Number:

Japanese Patent JP2003212756

Kind Code:

A

Abstract:

To provide a drug sustained release agent having a high strength, capable of sustainedly releasing a wide range of drugs over a long period and having excellent bone conductivity.

This drug sustained release agent is obtained by mixing calcium phosphate ceramic porous granules having a film of a first biodegradable organic material on the surface with particles of a second biodegradable organic material containing the drug and pressure molding the resultant mixture. Furthermore, the drug sustained release agent comprises the calcium phosphate ceramic porous granules containing the first drug, a biodegradable organic material layer formed by coating the surface of the porous granules therewith and a calcium phosphate ceramic layer formed by coating the surface of the biodegradable organic material layer and containing the second drug.

Inventors:

INOUE AKIRA
IRIE HIROYUKI
MATSUOKA NAOYUKI
HAKAMAZUKA KOJI
NAKAMURA TAKEAKI

Application Number:

JP2002012096A

Publication Date:

July 30, 2003

Filing Date:

January 21, 2002

Export Citation:

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Assignee:

OLYMPUS OPTICAL CO

International Classes:

A61K9/20; (IPC1-7): A61K9/20

Attorney, Agent or Firm:

Takehiko Suzue (4 outside)

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