Get a pint of Hi-Tech, Actavis Pro'metha'zine with Co'deine Purple Cough syrup,and Wock'hardt syrup are pain'killer. It's used to treat pain, for example after an operation or an injury. It's also used for long-standing pain when everyday pain'killers, such as para'ceta'mol, ibu'profen and as'pirin have not worked. Co'de'ine is also used to treat diarrhoea.