Iodine in biology
The U.S. Food and Nutrition Board and Institute of Medicine recommended daily allowance of iodine ranges from 150 micrograms per day for adult humans to 290 micrograms per day for lactating mothers. However, the thyroid gland needs no more than 70 micrograms per day to synthesize the requisite daily amounts of T4 and T3. The higher recommended daily allowance levels of iodine seem necessary for optimal function of a number of other body systems, including lactating breasts, gastric mucosa, salivary glands, oral mucosa, arterial walls, thymus, epidermis, choroid plexus and cerebrospinal fluid, among others.
Iobitridol
Xenetix 300 of Guerbet (Roissy, France) contains Iobitridol in 300 mg iodine/ml concentration. Recommended mean doses are 1.1 to 2.8 ml/kg body mass corresponding to 0,33 to 0,84 g iodine/kg human body mass. Injected into veins it will be filtered out by the kidneys. It is used also to fill joints or the uterus.