This section is from the "A Handbook of Useful Drugs" book, by State Medical Examining and Licensing Boards.
A fixed oil obtained from the fresh livers of Gadus morrhua.
Properties : Cod-liver oil occurs as a pale yellow, thin, oily liquid having a peculiar, slightly fishy, but not rancid odor, and a bland, fishy taste.
Action and Uses: Cod-liver oil is generally considered to be tonic and nutrient, but its value probably depends entirely on its nutritive property. It is preferably administered in the form of a recently prepared emulsion, though many persons are able to take the oil as food in the same way that olive oil is used. Alcoholic preparations of the so-called active principles of cod-liver oil have no demonstrated therapeutic action.