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

Other drugs for erectile dysfunction, such as avanafil, tadalafil, or vardenafil. ... The main difference between generic sildenafil and Viagra is marketing.

Study Shows Men With Erectile Dysfunction Favor Treatment With Vardenafil Date: September 24, 2006 Source: Blackwell Publishing Ltd. Summary: Research published in the Journal of Sexual Medicine ...