The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1989
Filed:
Feb. 03, 1987
Abstract
This invention relates to an aqueous preparation comprising a compound (A) represented by the formula: ##STR1## and at least one of cyclodextrins selected from .alpha.-cyclodextrin and dimethyl-.beta.-cyclodextrin; and a method of preparation thereof. According to the aqueous preparation of this invention, coexistence with at least one medicament selected from .alpha.-cyclodextrin and dimethyl-.beta.-cyclodextrin allows to enhance the solubility to water of compound (A) essential in this invention to such a concentration that makes an expected curative effect available and to inpart a desired stability to it. As a consequence, the aforesaid compound (A) can be utilized as a medicament for an aqueous preparation having anti-allergy action.