The term "neurotoxicity" refers to any type of impairment to the brain or central nervous system caused by toxins. The body's neurotransmitter system can be severely harmed during neurotoxicity. As an outcome, psychological disorders like anxiety and depression may arise. As a reaction, patients may seek relief from other neurotoxic substances, such as prescribed medications and illegal narcotics, which can both exacerbate toxicity and lead to drug dependence.