If "Tadaflo 5 mg" is indeed a product, it likely contains 5 mg of tadalafil. Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor, similar to sildenafil and vardenafil. It works by increasing blood flow to the penis, facilitating an erection during sexual stimulation. Additionally, tadalafil can help improve symptoms associated with an enlarged prostate.