Hey guys. I know that among drugs treating erectile dysfunction, Viagra is the most effective and popular, but is it really more effective? Or is it just brand name? In Viagra analogs there is almost the same composition. For example sildenafil is the main component and it is everywhere. So why pay more? I decided to try Cialis, because I think it is not worse than Viagra and cheaper. Has anyone tried? How are the results? Can you advise where to buy Cialis in Australia?