Lead salts usually produce constipation, and lead is an active ecbolic. Lead is said to enter the blood as an albuminate in which form it is deposited in the tissues.
These soluble salts combine with the albumins in the body, and are deposited as minute granules of silver albuminate in the connective tissue of the skin papillae, serous membranes, the intima of arteries and the kidney.
The drug circulates in the blood in the form of an albuminate and is slowly excreted by the kidneys.
Vachetta has used the albuminate of iron with striking success in grave cases of anaemia.