... ardenafil ( Levitra ), or 20 mg (n 9), 40 mg (n 8), or 60 mg (n Tadalafil ( Cialis )... Sildenafil Citrate ( Viagra ) (n 19), 10 mg (n 7) or 20 mg (n 9) Vardenafil ( Levitra ), ... 7 /- 0. 25 nM); and Vardenafil ( Levitra ) analogs demonstrated that higher influence of Vardenafil antibiotics and wine ( Levitra )...

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