Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a haloperidol stimulus.
Comment:
Note that this term is in the subset of terms that should not be used for direct manual annotation of gene products. It was created to be used for cross-referencing by other ontologies. Direct annotations to this term may be amended during annotation QC.