For anyone who is having a number of prescribed by doctors drugs, you have to talk to a health care professional before taking cialis. More specifically, there are actually drugs that can influence just how your body methods Cialis. For instance, anti-biotics like erythromycin, antifungal agents like ketoconazole, itraconazole and medications used in treating HIV infections like idinavir and ritonavir can interfere with the metabolism of Cialis. In simple thoughts, our bodies confirms it difficult ...