Vardenafil dihydrochloride salt

vardenafildihydrochloride(subjecttopatentfree) ; 1-[[3-(1,4-dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine dihydrochloride ; vardanafil ; vardenafil dihydrochloride ; vardenafil citrate ; 2-[2-ethoxy-5-(4-ethylpiperazin-1-yl)sulfonyl-phenyl]-5-methyl-7-propyl-1h-imidazo[5,1-f][1,2,4]triazin-4-one dihydrochloride ; vardenafil dihydrochloride solution ; levitra ; 2-[2-ethoxy-5-(4-ethylpiperazin-1-yl)sulfonylphenyl]-5-methyl-7-propyl-1h-imidazo[5,1-f][1,2,4]triazin-4-one dihydrochloride