I cannot get a second erection at my age have done everything possible, have been taking vigrxplus for 2 yrs, have never tasted alcohol in last 20yrs.

Have taken all sorts of concoction, don't take sugary drinks or oily foods.

No matter how hard I try, I can only go one round a day, my wife patience is beginning to dwindle.

Matured and quality advice or assistance needed.