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Title:
PRODUCTION OF HARD CAPSULE PREPARATION CONTAINING POLYPRENYL COMPOUND
Document Type and Number:
Japanese Patent JPH02247124
Kind Code:
A
Abstract:

PURPOSE: To improve the disintegration of coating membrane by adding a neutral or basic amino acid to a specific polyprenyl compound having markedly anti-inflammatory action with low toxicity and producing hard capsules using the mixture.

CONSTITUTION: When hard capsules containing polyprenyl compound of formula I (n is 1, 2, 3; R is methyl or formula II) are produced, a neutral or basic amino acid such as glycine, alanine, valine, leucine or arginine, especially glycine, alanine or valine is added to the prenyl compound in an amount of 0.1 to 2.0wt.%, or more than 0.3wt.%, when the prenyl compound contains more than 1.0wt.% of impurities and decomposition products, whereby the amines or carbonyls in gelatin causing bad disintegration behaviors are inactivated to improve the disintegration of the hard capsules.


Inventors:
UESUGI KEIZO
NODA NOBUTAKA
TANAKA MITSURU
KAYANO MASANORI
Application Number:
JP6538589A
Publication Date:
October 02, 1990
Filing Date:
March 17, 1989
Export Citation:
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Assignee:
EISAI CO LTD
International Classes:
A61K31/22; A61K9/48; A61K31/215; A61K31/405; A61K47/18; A61P29/00; A61P43/00; (IPC1-7): A61K9/48; A61K31/22; A61K31/405
Attorney, Agent or Firm:
Furuya Kaoru