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Sarah Morgan
Numan
What is tadalafil and how does it work?
Sarah Morgan explains that tadalafil is the active ingredient in Cialis, a medicine similar to Viagra. It works by blocking the enzyme that would normally cause an erection to subside.
Transcript
Tadalafil is the active ingredient in Cialis. A medicine similar to Viagra. It works by blocking the enzyme that would normally help your erection subside. This means that on arousal, you'll be able to achieve a longer lasting harder erection.