Cicloprolol hydrochloride is primarily used in the treatment of cardiovascular conditions, particularly hypertension (high blood pressure). It works by blocking beta-adrenergic receptors in the heart and blood vessels, which helps to reduce heart rate and blood pressure, easing the workload on the heart. This makes it effective in managing chronic hypertension and preventing complications such as heart attacks or strokes. Additionally, it may be prescribed for certain types of arrhythmias to stabilize heart rhythm. Its vasodilatory effects also contribute to improved blood flow, making it beneficial for patients with angina or other heart-related conditions.