These PDE5 inhibitors can successfully treat erectile dysfunction or erectile dysfunction :
Viagra : This most well-known ED medication contains the active ingredient sildenafil .
Levitra : This drug contains the active ingredient vardenafil and is usually better tolerated by diabetics.
Cialis : Cialis contains the active ingredient Tadalafil . This active ingredient, which is also contained in Vidalista , is characterized by a duration of action of up to 48 hours
Spedra : This ED medication contains the active ingredient avanafil .