Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor, similar to sildenafil (Viagra) and vardenafil (Levitra), which works by increasing blood flow to the penis, allowing a man to achieve and maintain an erection when sexually stimulated.Tadora 20 mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains tadalafil as its active ingredient.

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