Levitra has similar lead-time and duration but is less affected by food.
From the usatoday.com
Levitra and Cialis have even scored Super Bowl ad space.
From the abcnews.go.com
Levitra is among the prescription drugs that have emerged after Viagra to treat erectile dysfunction.
From the signonsandiego.com
More examples
Vardenafil: virility drug (trade name Levitra) used to treat erectile dysfunction in men
Also known as vardenafil: a form of medication for impotence which opens up blood vessels within the penis to improve blood flow. This causes an erection.
A medication used to treat erectile dysfunction that works by increasing the flow of blood into the penis.