The Betablock XL AM Tablet is also used to treat chronic (long-term) heart failure, irregular heart rhythms, and angina, or chest pain connected to the heart. The Betablock XL AM Tablet combines two medications. Although they do it in different ways, both medications reduce blood pressure. When combined, they lower heart rate, relax blood vessels, and facilitate the heart's ability to circulate blood throughout the body. As a result, blood pressure drops. Controlling blood pressure also lowers the risk of kidney issues, heart attacks, and strokes. For this medication to work, it must be taken as directed on a regular basis. Although this medication doesn't provide any immediate advantages, it keeps you healthy over time.