Tricalm 2 is an anticholinergic medication containing Trihexyphenidyl 2 mg. It is primarily used in the treatment of Parkinson's disease and drug-induced extrapyramidal disorders (like those caused by antipsychotic medications). It works by blocking the action of acetylcholine, a neurotransmitter, helping to reduce muscle stiffness and control abnormal movements. It is also effective in managing symptoms such as tremors and rigidity associated with Parkinson's disease.