iothiouracil sodium

i·o·thi·o·u·ra·cil so·di·um

(ī'ō-thī-ō'yūr'ă-sil sō'dē-ŭm),
The sodium salt of 5-iodo-2-thiouracil; an iodine derivative of thiouracil with the thyroid-involuting action of iodine and the capability to inhibit thyroxine production.