Preprint / Version 1

Acute and sub-chronic toxicity of Liberin, an anti-diabetic polyherbal formulation in rats

Authors

  • Renuka Suvarna aDivision of Ayurveda, Centre for Integrative Medicine and Research, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • Varashree Suryakanth bDepartment of Biochemistry, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • Pugazhandhi Bakthavatchalam cDepartment of Anatomy, Melaka Manipal Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • Guruprasad Kalthur dDivision of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, 576104, India
  • Deepak M eDepartment of Pathology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • M Prabhu fDepartment of General Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • Basavaraj Hadapad aDivision of Ayurveda, Centre for Integrative Medicine and Research, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
  • Revathi Shenoy bDepartment of Biochemistry, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India

Keywords:

Liberin, Toxicity, Polyherbal formulation, Anti-diabetic drug

Abstract

The polyherbal formulation (PHF) liberin, is known to exert anti-hyperglycemic effects in type 2 diabetes mellitus. Hence, it is important to study the safety profile of PHF in the current study through acute and chronic toxicity evaluation. Objectives This research aims to assess the acute and sub-chronic toxicity of PHF in rats. Materials and methods PHF was administered once orally (1000 mg/kg body weight), and the rats (male and female) were monitored for toxicity signs for a 14-day period. For a 28-day chronic toxicity study, rats were daily administered with PHF dose of 500 mg/kg and 1000 mg/kg body weight. Rats were followed up for mortality, weight changes, and other morbidities. Further haematological, biochemical, and histopathological changes were assessed. Results No death related to treatment or toxicity signs were recorded in the acute single-dose administration group. The results showed that the PHF was tolerated well up to a dose of 1000 mg/kg body weight. Even at the high dose of 1000 mg/kg body weight, sub-chronic tests did not show any significant difference between the dosed and normal groups. No significant changes were seen in the histopathological analysis of the liver, spleen, and kidney as well as haematological and biochemical parameters in acute, sub-chronic and satellite groups following the administration of PHF. Conclusion The results confirmed that there was no adverse effect of this PHF at the maximum dose of 1000 mg/kg body weight in Wistar rats. Further, no adverse delayed effects related to PHF were observed in the satellite group. Therefore, this PHF appears safe for therapeutic purposes in the Ayurvedic medicinal system. Keywords: Liberin, Toxicity, Polyherbal formulation, Anti-diabetic drug

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