 Also, since all levels of development are prone to developing pathology, transpersonal psychiatry can, according to theory, provide models for therapeutic intervention at all stages of maturation, including trans-egoic stages.Bruce Victor discussed the principles of transpersonal psychopharmacology, and transpersonal psychiatry's relationship to mind-altering medication.Other attempts to reconcile psychopharmacology with transpersonal psychiatry has been suggested by Gary Bravo and Charles Grob.