Article Publish Status: FREE
Abstract Title:

Safety assessment of Withania somnifera extract standardized for Withaferin A: Acute and sub-acute toxicity study.

Abstract Source:

J Ayurveda Integr Med. 2016 Mar ;7(1):30-7. Epub 2016 May 24. PMID: 27297507

Abstract Author(s):

Shruti B Patel, Nirav J Rao, Lal L Hingorani

Article Affiliation:

Shruti B Patel

Abstract:

BACKGROUND: The use of Withania somnifera is increasing due to a number of its chemical constituents found useful for health.

OBJECTIVE: The present study was carried out to investigate the potential adverse effects (if any) of a standardized Withania somnifera extract (WSE) in rats following acute and sub chronic administration.

MATERIALS AND METHODS: The toxicity study was performed in Wistar rats by oral administration. An acute toxicity study was done at the dose of 2000 mg/kg. In the sub-acute study, Wistar rats (10/sex/group) were administered via gavage 0 (control), 500, 1000, 2000 mg/kg body weight/day of WSE for 28 days. Among two additional satellite groups, one group did not receive any drug while the second group received 2000 mg/kg/day for 28 days. At the end of study, the animals sacrificed and their body weight, hematology, serum chemistry, and histopathology evaluation was done.

RESULTS: In acute toxicity studies, oral LD50 of WSE in Wistar rats was greater than 2000 mg/kg body weight. Compared to the control group in sub-acute toxicity study, administration of extract did not show any toxicologically significant treatment related changes in clinical observations, ophthalmic examination, body weight gain, feed consumption, clinical pathology evaluation, and organ weight. Hematological and serum chemistry parameters were within the normal limits. Terminal necropsy did not reveal any treatment related gross or histopathological findings.

CONCLUSION: Based on this study, the no-observed-adverse-effect-level of WSE is 2000 mg/kg body weight, the highest level tested.

Study Type : Animal Study
Additional Links

Print Options


Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2020 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.