Caramiphen hydrochloride is primarily used as an antitussive agent, effectively reducing coughing by acting on the central nervous system to suppress the cough reflex. It is often included in cough syrups and other medicinal formulations to provide relief from persistent or severe coughs. Additionally, it has been explored for its anticholinergic properties, which can help manage symptoms associated with certain neurological disorders, such as Parkinson's disease, by reducing muscle tremors and rigidity. Its ability to modulate neurotransmitter activity also makes it a subject of interest in research for potential applications in treating conditions like motion sickness or overactive bladder. However, its use is carefully regulated due to potential side effects and interactions with other medications.