Abstract
Influence of ferrum reductum administration on serum iron in post-absorptive state was investigated.
The repeated dose of ferrum reductum was given at the time just as the first iron absorption curve fall half way down. No rise in serum iron was found, however.
It is supposed that the iron absorption was controled, and thereupon repeated dose of ferrum reductum was given with meal or on an empty stomach, but no rise in serum iron was seen. And then an extremely small amount of ferrum reductum was administered followed by the large amount of ferrum reductum when the iron absorption curve gradually began to fall, but no rise of serum iron level was found.
These were interpreted as Granick's mucosal block.
