Technology
Viagra may help treat heart failure
Jan. 2, 2012
BOCHUM, Germany, Dec. 31 (UPI) -- Sildenafil, the active ingredient in Viagra, may ease heart symptoms because it makes stiffened cardiac walls more elastic, U.S. and German researchers say.Dr. Wolfgang Linke of the Ruhr-Universitat Bochum Institute of Physiology, in cooperation with colleague