Most psychotropic agents employed in allopathic medicine have limited effic
acy and significant side effects. Although usually beneficial, synthetic ps
ychotropics are unavailable to approximately 80% of the world's population.
Improved understanding of appropriate and safe uses of naturally occurring
substances as psychotropic agents will greatly contribute to global mental
healthcare. Empirical validation of nonallopathic treatments to ensure saf
ety and efficacy is important because increasing numbers of patients in eco
nomically developed countries are using natural substances as medicinal age
nts. Patients and clinicians often lack accurate information, resulting in
poor treatment outcomes or the possibility of drug-drug interactions when h
erbal medications are used with synthetic psychotropic medications. An impo
rtant objective of this paper is to distinguish compelling scientific evide
nce supporting the use of natural natural products in psychiatry from polit
ical or institutional biases that hale been misrepresented as scientific ar
guments. Following an overview of historical, legal, and regulatory issues,
this paper presents findings of a systematic literature review an natural
products used to treat neuropsychiatric disorders. Significant recent resea
rch is reviewed, including emerging treatments of seizure disorders, schizo
phrenia, dementia and age-related cognitive decline, depression, anxiety st
ates, and substance abuse. Substantial evidence is advanced for safety and
efficacy of many natural products used to treat neuropsychiatric symptoms o
r disorders. Preliminary findings suggest that several treatments based on
natural substances are as effective and safe as synthetic pharmaceuticals i
n current use. Additional studies are indicated to confirm these findings,
to elucidate mechanisms of action, and to elaborate standards for safe and
appropriate treatment indications. In conclusion, strategic approaches aime
d at facilitating improved networking, accelerating promising research dire
ctions, and enhancing quality standards of ongoing investigations into puta
tive psychotropic agents from natural sources are recommended.