Hydroxyurea affects certain cells in the body, such as cancer cells or sickled red blood
cells.
Hydroxyurea is used to treat melanoma (a type of skin cancer), chronic myelocytic
leukemia, cancer of the ovary, and primary squamous cell (skin) cancer of the head and neck.
Hydroxyurea is also used to treat sickle cell anemia.
Hydroxyurea may also be used for other purposes not listed in this medication guide.