Acebutolol hydrochloride is primarily used as a beta-blocker in the treatment of cardiovascular conditions. It is effective in managing high blood pressure (hypertension) by reducing the heart rate and the force of heart contractions, thereby lowering blood pressure. This helps in decreasing the risk of strokes, heart attacks, and kidney problems. Additionally, it is used to treat irregular heartbeats (arrhythmias) by stabilizing the heart's rhythm. Acebutolol hydrochloride is also prescribed for patients with angina pectoris, where it helps to reduce the frequency and severity of chest pain by improving blood flow to the heart. Its ability to block the effects of adrenaline on the heart makes it a valuable medication in managing these conditions.