Caverta 50 mg belongs to a class of medications known as phosphodiesterase type 5 (PDE5) inhibitors. Its active ingredient, sildenafil citrate, works by enhancing blood flow to the penis during sexual stimulation, facilitating erections. By inhibiting the enzyme PDE5, Caverta 50 mg ensures that the smooth muscles of the penis relax, allowing for increased blood flow and sustained erections.