How does Cialis (Tadalafil) work?

How Tadalafil Works: Enhancing Blood Flow for Firmer Erections

Tadalafil works by inhibiting the PDE5 enzyme, which helps the blood vessels in the penis relax and expand, improving blood flow when you’re naturally aroused. This makes it easier to achieve and maintain an erection.

When Does Tadalafil Work Best?

Tadalafil helps you achieve stronger, more reliable erections, but it requires natural arousal to work.