Benactyzine is primarily used in the field of medicine as an anticholinergic agent. It is often employed to treat gastrointestinal disorders, such as irritable bowel syndrome, by reducing muscle spasms and excessive secretions in the digestive tract. Additionally, it has been explored for its potential in managing anxiety and psychosomatic conditions due to its calming effects on the central nervous system. In some cases, it is also used as a preanesthetic medication to reduce saliva production and prevent reflex bradycardia during surgical procedures. Its ability to block acetylcholine receptors makes it effective in various therapeutic applications, though its use is often limited due to potential side effects.