Renal retention of mercury-203-neohydrin.

tention in a series of 12 patients, according to Sodee, and he discontinued the mercuhydrin injection ( 7 ). McAfee noted that pharmacologists have been unable to block the uptake in the kidneys, despite pre-dosing rats with cold mercurials with doses up to 20 mg of mercury per kilogram, a tremendously toxic dose (8). Although brain scanning with such short-lived isotopes as 99mTcand 197Hg is rapidly increasing in popularity and utilization, it was felt that in view of the large percentage of brain scans still being performed with -o:!Hg—neohydrin, a