Tadora 20 mg contains tadalafil, a PDE-5 inhibitor commonly prescribed for erectile dysfunction (ED). It works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain an erection. It does not increase sexual desire by itself. Better health awareness is important when considering tadalafil. Men should discuss existing heart disease, blood-pressure problems, kidney or liver conditions, and current medications with a healthcare professional before use. Tadalafil must not be combined with nitrate medicines, because the combination can cause a potentially dangerous drop in blood pressure.