Herbal medicines and phytochemicals for obsessive-compulsive disorder

Ayati et al., 2020 | Phytother Res | Systematic Review

Citation

Ayati Zahra, Sarris Jerome, ... Rahimi Roja. Herbal medicines and phytochemicals for obsessive-compulsive disorder. Phytother Res. 2020-Aug;34(8):1889-1901. doi:10.1002/ptr.6656

Abstract

Obsessive-compulsive disorder (OCD) is a relatively prevalent mental disorder that poses significant health burdens on the community. Although current conventional medications have good efficacy for many patients, they can elicit a range of associated adverse effects. Plant-based compounds have been evaluated for different mental disorders, with a range of anxiolytic properties revealed. To determine the current evidence in the area, we conducted a systematic review using the electronic databases including PubMed, Scopus, and the Cochrane Library up to June 12, 2019, for pharmacological and clinical evidence of herbal medicines and phytochemicals with antiobsessive-compulsive effects. Additional search criteria were employed for locating research on the underpinning mechanisms of action. Results revealed that tentative low-quality evidence exists for several plant medicines, including Crocus sativus, Silybum marianum, Echium amoenum, Hypericum perforatum, and Withania somnifera, along with several natural molecules, including crocin, cannabidiol, and curcumin. Although more research is needed to confirm effectiveness, present preclinical studies indicate that monoamine pathway modulation (in particular serotonin reuptake inhibition) may be the most important anti-OCD mechanism among the studied natural compounds.

Key Findings

Although more research is needed to confirm effectiveness, present preclinical studies indicate that monoamine pathway modulation (in particular serotonin reuptake inhibition) may be the most important anti-OCD mechanism among the studied natural compounds.

Outcomes Measured

  • Requires manual extraction

Population

Field Value
Population See abstract
Sample Size See abstract
Age Range See abstract
Condition See abstract

MeSH Terms

  • Humans
  • Obsessive-Compulsive Disorder
  • Phytotherapy
  • Plants, Medicinal

Evidence Classification

  • Level: Systematic Review
  • Publication Types: Journal Article, Systematic Review
  • Vertical: ashwagandha

Provenance


Source extracted via PubMed E-utilities API on 2026-04-09