Entacapone is the main active pharmaceutical ingredient present in Entacom. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson's disease. Entacom is a drug that is used for the treatment of Parkinson’s disease in combination with Levodopa and Carbidopa and helps in relieving the symptoms such as stiffness, tremors, muscle spasms,…