The book contains complete review of arsenic toxicity in animals and humans and nanotechnology in drug delivery and therapeutic use of curcumin. In addition, protocols for preparation of nanoparticle encapsulated curcumin and characterization of nanoparticle i.e. particle size, encapsulation efficiency and drug release pattern. Among several well-established methods for assessment of cell antioxidant potential, lipid peroxidation and biochemical markers has been included. Lymphocyte proliferation assay as a marker of cell-mediated immune response and Comet assay as an indicator of DNA damage in bone marrow have been incorporated. The complete results of nanoparticle curcuim on subchronic arsenic toxicity in rats have been included. The intended audience is veterinary students or others who may desire a focused review of nanoparticle curcumin and its amelioration effect on arsenic toxicity. This book is intended as a review or update in toxicology of arsenic and protective effect of nanoparticle-encapsulated curcumin.