Vidalista 40 tablet is used for treating Erectile Dysfunction (ED) in men , also known as impotence . This medical condition is usually caused by decreased blood flow to the penis, making a man unable to achieve or maintaining a penile erection , which is adequate for sexual intercourse . The blood flow can decrease due to various physical complexities , followed by an injury , disease , or even psychological conditions , including stress, anxiety, depression, etc . Obesity , excessive smoking, and drinking can also lead to erectile dysfunction problem . ED (Erectile Dysfunction) is strongly related to age , and the intensity may enhance a few folds between 40 and 70 . This medicine helps the smooth muscles present in the blood vessel walls to relax , increasing blood flow to the penis . Whether the erectile dysfunction is due to psychological or physical causes , the medicine works effectively in both cases. How Vidalista works ? It relaxes the smooth mus