KUFRIN-A SYP ambroxol I.P. 15 mg, Terbutaline I.P. 1.25 mg, Guaiphenesin I.P. 50 mg & Menthol 2.5 mg Syrup is used to treat respiratory conditions by thinning mucus, relieving cough, and relaxing the airways. It also provides a cooling effect on the throat, making it easier to breathe.