Tastylia 20 mg is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient tadalafil. Tadalafil works by increasing blood flow to the penis during sexual stimulation. It achieves this by inhibiting the enzyme PDE5, which regulates blood flow in the penis. Tastylia 20 mg oral strips should be placed on the tongue and left to dissolve. They should not be chewed or swallowed whole.