Page 21 - Applied Pharmacognosy
P. 21
Redefining Quality - Quality Issues with Herbs
❑ Inferiority of Medicinal Plants Nux vomica seeds
❑ It is the inherent biological and chemical
variability of herbs.
❑ The drugs used are of sub‐standard
condition for any reason such as a low
percentage of active constituents.
❑ E.g. Nux vomica seeds containing less than
the official percentage of strychnine.
❑ Possible causes of inferiority and
irreproducibility of herbal ingredients include:
✓ Pre-harvesting factors.
✓ Post-harvesting factors.
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