With Viagra within easy reach erectile dysfunction is now not the kind of worry it used to be. As we all must know that ED drugs like Viagra have several side effects and sometimes these side effects can get serious. But apart from these physiological side effects, Viagra can also bring about misunderstandings, differences and ill feelings in a relationship, quite contrary to popular belief. You may ask how it is possible. From the day of its invention Viagra has been believed to cement breaking relationships. It has been vested with the belief that it can bring back the lost spark in a relationship and mend the marriage. This is especially true in the case of the aging couples.