Caverta 50 mg contains sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor commonly prescribed to treat erectile dysfunction (ED) in adult men. Erectile dysfunction is a condition in which a man has difficulty achieving or maintaining an erection sufficient for sexual activity. It can sometimes affect confidence, intimacy, and overall quality of life. Sildenafil works by increasing blood flow to the penis when sexual stimulation occurs. It helps support an erection but does not automatically cause one and does not increase sexual desire. Sexual arousal is still necessary for the medicine to work. For men who respond to treatment, improved erectile function may help reduce performance-related concerns and support greater satisfaction.