Abstract
Aim: The polyherbal siddha formulation veppampoo Mathirai is effective in regulating blood pressure but its safety is not known. The heavy metal, aflatoxins, pesticide residue, microbial count have not been evaluated so far. The current study evaluated the above parameters. The present study was aimed to evaluate the safety parameters (heavy metal, aflatoxin, pesticide residue and microbial profile) of Veppampoo Mathirai.
 Materials and Methods: According to AYUSH [Ayurveda, yoga, unani, siddha, naturopathy] Pharmacopoeial laboratory for Indian medicine (PLIM) guidelines, the formulation was evaluated for its safety parameters at Noble research solutions, kolathur, Chennai, accredited with ISO 9001: 2015.Atomic Absorption Spectrometer (AAS) was used for testing heavy metals and aflatoxins were tested using Thin layer chromatography(TLC). The Pesticide residues content was estimated by GC/MS while microbial count by pour plate method.
 Results: The study revealed presence of heavy metals mercury, arsenic, lead and cadmium within the recommended limit as per AYUSH Pharmacopoeial Laboratory for Indian Medicine Guidelines whereas presence of Aflatoxin, pesticide residues and microbes were absent in the sample which showed the formulation Veppampoo Mathirai (VPM) was free from toxicity.
 Conclusion: VPM showed heavy metal content below the permissible limit as per PLIM guidelines of AYUSH. Aflatoxins and pesticide residue were not detected while the microbes and specific pathogens were absent in the current batch of VPM. Hence, the present study ensures the formulation was safe for therapeutic use.
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