Distribution and excretion of3H-rhomotoxin in mice

The distribution and excretion of intravenous injected3H-rhomotoxin was studied in mice. The radioactivity of3H-rhomotoxin was found to be high in gall bladder, liver and kidney, lower in thyroid gland, adrenal gland, heart and lungs, and lowest in brain. 52.4% of the drug was excreted in urine and feces within 6 h. Rhomotoxin was bound to plasma protein (60 % at 30 min) and to some extent to liver and kidney tissue.