Used primarily in medicine to treat circulatory disorders by improving blood flow and reducing spasms in smooth muscles. Commonly applied in the management of acute circulatory shock, particularly in infectious or toxic shock, due to its ability to stabilize microcirculation. Also utilized for visceral colic, such as gastrointestinal or renal colic, where it helps relieve pain by relaxing smooth muscle contractions. Exhibits fewer central nervous system side effects compared to similar anticholinergic drugs, making it preferable in certain clinical settings. Frequently used in China and some Asian countries as part of emergency and critical care treatment protocols.