Toxic
Myelosuppression
        Leukopenia/Neutropenia
       Thrombocytopenia
       Anemia
Megaloblastic Erythropoiesis
Idiosyncratic
          Nausea, Vomiting
          Stomatitis, Anorexia, Diarrhea,  
          Constipation
          Skin rash, Erythema
         Hair Loss
Effects reported in animals
        Carcinogenesis
        Teratogenesis
Long Term effects
        Unknown
Table 1: Side Effects of Hydroxyurea.