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The safety of St John's wort (Hypericum perforatum) in pregnancy and lactation: A systematic review of rodent studies


Avila, C and Whitten, D and Evans, S, The safety of St John's wort (Hypericum perforatum) in pregnancy and lactation: A systematic review of rodent studies, Phytotherapy Research, 32, (8) Article Epub ahead of print. ISSN 0951-418X (2018) [Refereed Article]

Copyright Statement

Copyright 2018 John Wiley & Sons, Ltd.

DOI: doi:10.1002/ptr.6099


Herbal products are popular among women during the perinatal period. St John's wort (SJW), Hypericum perforatum, is a common remedy for mild depression, a problem prevalent in this population. Although the safety of herbal products must be investigated, ethical issues constrain intervention studies in humans. Hence, animal studies often inform clinical decisions. The objective of this study is to systematically review rodent studies assessing the safety of SJW during the perinatal period. A literature search to November 10, 2017, identified 10 rodent studies that met a priori inclusion criteria. Study quality was evaluated according to both the Systematic Review Centre for Laboratory animal Experimentation tool for assessing bias and recommendations for appropriate reporting of herbal medicine research. Significant methodological limitations were found in each of the studies reviewed. These limitations include the lack of botanical verification and omission of extract characterization, inadequate explanation of dosage rationale, and absence of bias limiting protocols. Critical appraisal with contemporary tools indicates that each of the reviewed studies lacks appropriate rigour, rendering the results unreliable. Despite this, these papers are used in the rationale for recommending or contraindicating SJW during pregnancy and lactation.

Item Details

Item Type:Refereed Article
Keywords:animal studies; Hypericum perforatum; perinatal depression; pregnancy; safety; St John's wort
Research Division:Health Sciences
Research Group:Traditional, complementary and integrative medicine
Research Field:Naturopathy
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Public health (excl. specific population health) not elsewhere classified
UTAS Author:Whitten, D (Ms Dawn Whitten)
UTAS Author:Evans, S (Dr Sue Evans)
ID Code:127343
Year Published:2018
Web of Science® Times Cited:3
Deposited By:Pharmacy
Deposited On:2018-07-23
Last Modified:2021-01-12

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