Quality control methods for herbal materials
World Health Organization (WHO)
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WHO published Quality control methods for medicinal plant materials in 1998, in order to support WHO Member States in establishing quality standards and specifications for herbal materials, within the overall context of quality assurance and control of herbal medicines. This publication came to be regarded as one of the key technical documents in ensuring and controlling the quality of herbal medicines. At the end of 2007, the document WHO guidelines on assessing quality of herbal medicines with reference to contaminants and residues was published. These two publications were the result of joint activities between, among others, the teams of Quality and Safety: Medicines (QSM) and Traditional Medicine (TRM) within the WHO Cluster for Health Systems and Services.