Title:
【発明の名称】被覆薬剤の製造方法
Document Type and Number:
Japanese Patent JPH07100665
Kind Code:
B2
Abstract:
PCT No. PCT/JP88/00483 Sec. 371 Date Jun. 9, 1988 Sec. 102(e) Date Jun. 9, 1988 PCT Filed May 23, 1988 PCT Pub. No. WO89/05635 PCT Pub. Date Jun. 29, 1989.Solid medicament forms, such as granules, beads, tablets, are first coated with a hot aqueous dispersion of a cellulose ether, which is soluble in cold water but insoluble in hot water, and then subjected to a wax treatment with heating to form a masking layer of the wax. Different from the coating film of a cellulose ether formed by using an aqueous or organic solution of the cellulose ether, the coating film formed by using the aqueous dispersion of the cellulose ether has a porous structure so that the amount of the wax deposited in the wax treatment is much larger than in the prior art methods to exhibit a high effect of masking the bitterness of the ingredient contained in the medicament form.
Inventors:
Hiroyasu Kokubo
Yasuaki Muto
Chiba Tohru
Yasuaki Muto
Chiba Tohru
Application Number:
JP32658987A
Publication Date:
November 01, 1995
Filing Date:
December 23, 1987
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
A61K47/44; A61K9/28; A61K9/34; A61K9/50; A61K9/52; A61K9/60; A61K47/00; A61K47/38; (IPC1-7): A61K47/38; A61K9/34; A61K9/60; A61K47/44
Attorney, Agent or Firm:
Ryoichi Yamamoto (1 person outside)
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