Doxacurium Chloride is primarily used as a long-acting neuromuscular blocking agent in medical settings, particularly during surgical procedures. It works by inducing muscle relaxation, which is essential for facilitating endotracheal intubation and maintaining controlled mechanical ventilation. Its prolonged duration of action makes it suitable for lengthy surgeries where sustained muscle relaxation is required. Additionally, it is often preferred in patients with renal or hepatic impairment due to its predictable pharmacokinetics and minimal reliance on organ function for elimination. The drug is administered intravenously and closely monitored to ensure optimal dosing and patient safety.