Advances in the field of nano drugs have shown signs of distress. Being nanoscaled, the particles if inhaled can cause serious damages to the lungs, they can even increase the number of biomarkers for inflammation and stress response. Nanoparticles can also be accounted for the disease like cancer, neurological disorders, heart disease and aging. Studies are being performed for cell toxicity, immunotoxicity and genotoxicity to further investigate the effects of nanoparticles. The session will deal with the aspects of nanoproduct toxicity in- vivo and the steps being taken to overcome these situations.