Byscard Tab is a highly effective beta-blocker drug that contains nebivolol as its active ingredient. This medicine is given to people who have hypertension, a chronic condition characterized by high blood pressure, as well as those who have angina or heart failure. The key ingredient in the medicine works by inhibiting the actions of certain hormones in the body that cause blood vessels to constrict and the heart to beat quicker. This lowers blood pressure and improves cardiac function. Byscard Tab is normally used once a day, with or without food, unless otherwise prescribed by a doctor. By lowering blood pressure, the medicine helps to lower the risk of a variety of health issues.