Vardenafil typically starts working faster, around 15 to 30 minutes after ingestion, while sildenafil may take 30 to 60 ...

Here's a simplified table summarizing their mechanism of action: A significant difference between sildenafil and tadalafil lies in their duration of action. Sildenafil (Viagra) generally has a shorter ...

Two drugs in this class are Levitra (vardenafil) and Viagra (sildenafil ... The chart below outlines some key similarities and differences between the two Food and Drug Administration (FDA ...