After either oral or intravenous administration, sildenafil is excreted birli metabolites predominantly in the feces (approximately 80% of the administered oral dose) and to a lesser extent in the urine (approximately 13% of the administered oral dose) .1. Sat?n Iktibas Noktas?: Cialis'i yaln?zca resmi ve lisansl? eczanelerden yahut güvenilir onli