Description
Cialis is a brand of tadalafil, one of the most popular medications to treat erectile dysfunction (ED).
Cialis is popular because it offers dosing flexibility, works well, and is convenient to take.
Cialis is a phosphodiesterase type 5Â (PDE5) inhibitor. It works for ED by relaxing smooth muscle in the blood vessels of the penis, therefore increasing blood flow.
PDE5 inhibitors only work in the presence of nitric oxide, which is naturally released during sexual arousal. PDE5 inhibitor medications work in 60 to 70 percentTrusted Source of people with ED
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