Cough: Codeine is helpful in dealing with many etiologies generating chronic cough. Continual cough can derive from many pathological states, with codeine being variably helpful at managing the cough depending upon the underlying etiology. Anyway I don't love it, the reason why is that promethazine inhibits the enzyme that metabolised https://codeine92092.blogzet.com/indicators-on-codeine-you-should-know-49935436