| 摘要 |
PURPOSE:A safe anemia preventing agent, obtained by incorporating l-tryptophan or a derivative thereof as an active constituent in an animal tissue extract, etc., and capable of very remarkably preventing iron deficiency anemia. CONSTITUTION:An anemia preventing agent, obtained by incorporating l-tryptophan or a derivative thereof, e.g. n-acetyl-l-tryptophan or 5-hydroxytryptophan, in a substance selected from an animal tissue extract, pulverized animal tissue or enzymic decomposition product. A mammal, e.g. cattle or pig, bird, fish or shellfish, etc. may be used as the animal, and the liver or blood is preferably used in the case of particularly a large animal. A pharmaceutical containing the tissue extract, etc. and l-tryptophan at 1:0.1-20 compounding ratio has particularly good anemia preventing effect. |
