Guidelines for treating various conditions can be helpful in setting practice standards, but the presence of several sets of guidelines from different countries, experts, and settings, written at different times, can also create confusion. Here we provide a "guideline of guidelines" for the treatment of schizophrenia, or "meta-guidelines, which not only reconcile the various existing standards but also update them to include the use of several newer agents, most of which were marketed following the publication of existing standards.