Wiktionary
masoprocol
n. A particular topical drug used in chemotherapy.
Wikipedia
Masoprocol
Masoprocol is an antineoplastic drug used to treat skin growths caused by sun exposure. A form of nordihydroguaiaretic acid that is taken by mouth is being studied in the treatment of prostate cancer.
Also called nordihydroguaiaretic acid, NDGA, and actinex.