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Details for Patent: 5,534,534

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Summary for Patent: 5,534,534

Title: Pharmaceutical compositions for oral use and method of preparing them
Abstract:A pharmaceutical composition for oral use comprising an effective amount of a compound of the formula (I) having antagonistic action to angiotensin II ##STR1## (wherein the ring W is an optionally substituted N-containing heterocyclic residue; R.sup.3 is a group capable of forming an anion or a group convertible thereinto; X is a direct bond or a spacer having an atomic length of two or less between the phenylene group and the phenyl group; and n is an integer of 1 or 2) and an oily substance having a lower melting point, and a method for preparing a pharmaceutical composition for oral use comprising an effective amount of a compound of the formula (I) and an oily substance having a lower melting point, which comprises admixing the compound of the formula (I) with an oily substance having a lower melting point and then subjecting the mixture to molding.
Inventor(s): Makino; Tadashi (Osaka, JP), Mizukami; Yashio (Osaka, JP), Kikuta; Jun-ichi (Osaka, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:07/978,290
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Use;
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Foreign Priority and PCT Information for Patent: 5,534,534

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan3-304924Nov 20, 1991

International Patent Family for Patent: 5,534,534

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria157248<disabled in preview>
Austria277602<disabled in preview>
Australia2839192<disabled in preview>
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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