This module is to describe basic concepts in neuropharmacology e.g. on the localisation and putative function of neurotransmitter pathways in the brain and to use this knowledge to consider different theories relating to the biochemical basis of action of psychotomimetic and psychotropic drugs. This is used as a foundation to consider the biochemical basis of major psychiatric disorders including schizophrenia, depression and anxiety and neurodevelopmental disorders e.g. autism spectrum disorders. It will progress to highlight emerging opportunities for treatment of psychiatric conditions.