Used primarily as a decongestant in nasal sprays and eye drops to relieve symptoms of congestion and redness. It works by constricting blood vessels in the nasal passages and eyes, reducing swelling and improving airflow. Also employed in ophthalmic solutions to dilate the pupil during eye examinations. In some cases, it is included in combination cold and allergy medications to alleviate sinus pressure and nasal stuffiness. Additionally, it may be used in low blood pressure management during anesthesia to elevate blood pressure temporarily.