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:
Sep. 13, 2022
Filed:
Nov. 16, 2017
Senju Pharmaceutical Co., Ltd., Osaka, JP;
Yasuhiro Mori, Osaka, JP;
SENJU PHARMACEUTICAL CO., LTD., Osaka, JP;
Abstract
Provided are: emulsion eyedrops which have no concern with possible corneal injury induced by a nonionic surfactant, have excellent thermal stability and physical stability and can contain a sparingly water-soluble drug in an increased amount; and an emulsion eyedrops stabilization method. The emulsion eyedrops contain castor oil and poly(vinyl alcohol), wherein the concentration of castor oil is 5 to 20 w/v %, the concentration of poly(vinyl alcohol) is 2 to 7 w/v %, and the ratio of the weight of castor oil to the weight of poly(vinyl alcohol) is 1.2 to 5. The emulsion eyedrops stabilization method is characterized by preparing emulsion eyedrops containing castor oil and poly(vinyl alcohol), wherein the concentration of castor oil is 5 to 20 w/v %, the concentration of poly(vinyl alcohol) is 2 to 7 w/v %, and the ratio of the weight of castor oil to the weight of poly(vinyl alcohol) is 1.2 to 5.