theres a cheaper version of viagra called vg100.there cheaper then viagra and are meant to do the same thing there little blue triangle shapes,

ill tell u the best way to stay hard and its free,get a pint glass with ice,piss in it then squeeze a little lump of shite in2 it and give it a good mix,now down it in one and youll have a boner for 2 hours and its completley free and u dont have to risk taking pill that u dont know

ive never tried it but it works buddy