radiopharmacology
/ˌreɪdɪəʊˌfɑːməˈkɒlədʒi/noun
1The branch of pharmacology concerned with the development and study of radiopharmaceuticals; the use of radiopharmaceuticals in clinical medicine and biomedical research.
2The use of drugs in radiology. rare.
Origin
1960s; earliest use found in Journal Nuclear Medicine. From radio- + pharmacology.