Details for Patent: 6,562,375

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Summary for Patent: 6,562,375

Title:	Stable pharmaceutical composition for oral use
Abstract:	The present invention is to provide a stable pharmaceutical composition for oral use and preparation thereof in which changes are prevented in drug release at stored even under the exposure to light by adding yellow ferric oxide and/or red ferric oxide in a matrix type sustained-release preparation containing a drug, hydrophilic base, and polyethylene oxide. The present invention is to further provide a method for preventing changes in drug release at stored under the exposure to light in a matrix type sustained-release preparation containing a drug, hydrophilic base, and polyethylene oxide. The quality assurance period of the product can be prolonged and the product value can be improved by the present invention.
Inventor(s):	Sako; Kazuhiro (Shizuoka, JP), Sawada; Toyohiro (Shizuoka, JP), Yoshihara; Keiichi (Shizuoka, JP), Yoshioka; Tatsunobu (Shizuoka, JP), Watanabe; Shunsuke (Shizuoka, JP)
Assignee:	Yamanouchi Pharmaceuticals, Co., Ltd. (Tokyo, JP)
Application Number:	09/629,405
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 6,562,375
Patent Claim Types: see list of patent claims	Composition; Formulation; Dosage form; Use;

Drugs Protected by US Patent 6,562,375

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 6,562,375

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Austria	324909	⤷ Sign Up
Australia	6182100	⤷ Sign Up
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Canada	2387705	⤷ Sign Up
China	1193792	⤷ Sign Up
China	1373673	⤷ Sign Up
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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