The London Pharmacopoeia
From the College of Herbalists
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Evidence-based recommendations for herbalist practice, including plant information, clinical protocols, and more.
Find guidance by conditions
Find guidance by conditions
Evidence-informed guidance on the therapeutic application of herbal medicines in relation to specific pathophysiological conditions and symptomatology.
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Find guidance by specialty
Find guidance by specialty
Structured access to guidance according to clinical disciplines and specialist practice areas, supporting integrative decision-making across a range of therapeutic contexts.
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Find guidance by plant
Find guidance by plant
Our databases of medicinal plant monographs, including safe clinical uses, phytochemistry, contraindications, and safety considerations.
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About our guidelines
About our guidelines
The guidelines presented within the London Pharmacopoeia represent the official clinical and technical standards of the College of Herbalists.
Developed through a rigorous review of traditional use, empirical evidence, and current scientific literature, these guidelines are intended to support the safe, effective, and responsible practice of herbal medicine. They provide foundational direction on the selection, preparation, and clinical application of medicinal plants, while upholding principles of professional integrity, patient safety, and regulatory compliance.
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