Sexual gratification is crucial to maintain a connection between wife and a husband. There is no problem in having such physical relations so long as both individuals are happy and mutually satisfied. But if one's companion is just not totally satisfied with him buy levitra canada, then it mans he should possess some sexual disorder like erection dysfunction , or ED. This is a situation where a man has problems getting an erection or even keeping it. This could be a problem viagra achat suisse just on occasion or else it could be a continual situation. Erectile disorder.