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:
Nov. 03, 1981
Filed:
Aug. 30, 1979
Applicant:
Inventors:
George Y Lesher, Schodack, NY (US);
William B Dickinson, Albany, NY (US);
Assignee:
Sterling Drug Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424250 ; 544238 ;
Abstract
4,5-Dihydro-6-(4-pyridinyl)-3-pyridazinol or pharmaceutically-acceptable acid-addition salt thereof is useful as a blood pressure lowering agent. 4,5-Dihydro-6-(4-pyridinyl)-3-pyridazinol is prepared by reacting .gamma.-oxo-.gamma.-(4-pyridinyl)butyronitrile with a hydrazine salt of a strong inorganic or organic sulfonic acid. Said 4,5-dihydro-6-(4-pyridinyl)-3-pyridazinol or pharmaceutically-acceptable salt thereof is shown as the active ingredient in pharmaceutical compositions for lowering blood pressure and in the method for lowering blood pressure in a patient having elevated blood pressure.