Hexinor 50 ml Syrup is an anticholinergic medication containing Trihexyphenidyl Hydrochloride, primarily used as an adjunct therapy in the management of all forms of Parkinsonism, including idiopathic, postencephalitic, and arteriosclerotic types. It is also effective in controlling extrapyramidal disorders induced by central nervous system drugs such as phenothiazines, thioxanthenes, and butyrophenones.