Cavapro 300 mg contains Vardenafil, a highly selective phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in men. This medication works by increasing blood flow to the penis, allowing men to achieve and maintain an erection in response to sexual arousal. Cavapro 300 mg is a more potent dose, intended for those who require a higher dose to effectively manage ED.