Glofel is a medication containing Tadalafil 20mg, a phosphodiesterase type 5 inhibitor used in the treatment of erectile dysfunction. Tadalafil works by inhibiting the enzyme phosphodiesterase type 5, leading to increased blood flow to the penis during sexual stimulation. This results in improved erectile function. It is important to note that sexual stimulation is still required for the medication to be effective. Tadalafil has a long duration of action, allowing for a window of opportunity for sexual activity. It is essential to follow the prescribed dosage and recommendations provided by a healthcare professional.