Oxyphenonium bromide is primarily used as an antispasmodic agent in the treatment of gastrointestinal and genitourinary disorders. It helps to relieve symptoms associated with excessive smooth muscle contractions in the digestive tract and urinary system, such as abdominal cramps, spasms, pain, and urinary discomfort. This compound is often employed in managing conditions like irritable bowel syndrome (IBS), peptic ulcers, cystitis, and urinary retention, where it reduces muscle spasms and decreases gastric acid secretion. Additionally, it has been used in preoperative settings to minimize gastrointestinal motility and secretion during surgical procedures, and to help prevent stress ulcers. Its anticholinergic properties make it effective in blocking the action of acetylcholine at muscarinic receptors, thereby providing relief from spasms and discomfort in various clinical scenarios.