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  • Search by Latin or common name (e.g., Achillea, yarrow).
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What an entry includes

  • Scientific + common names, parts used, primary actions, systems, preparations.
  • Safety snapshot and links to related Studies when available.
  • Consistent black-and-white, field-guide style illustrations for quick recognition.

Editorial standards: Educational, research-aware, and non-diagnostic. See our Editorial Policy and Sourcing & Citations.

Medical disclaimer: For general education only. Consult a qualified practitioner about individual use, especially with medications, pregnancy, or medical conditions.

Materia Medica A – Z

Our herbal encyclopedia with preparations, uses, safety notes, and research references.

Showing 201–220 of 321 entries.

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Panax quinquefolius American Ginseng Coming soon
Safety: Details coming soon.
Parsley seed Coming soon
Safety: Details coming soon.
Passionflower Coming soon
Safety: Details coming soon.
Passionflower herb Coming soon
Safety: Details coming soon.
Pau d’Arco Coming soon
Safety: Details coming soon.
Pelargonium sidoides South African Geranium Coming soon
Safety: Details coming soon.
Pennyroyal (caution) Coming soon
Safety: Details coming soon.
Peony (red) Coming soon
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Peppermint Coming soon
Safety: Details coming soon.
Petasites hybridus Butterbur Coming soon
Safety: Details coming soon.
Pfaffia paniculata Suma Coming soon
Safety: Details coming soon.
Phellinus linteus Meshima Coming soon
Safety: Details coming soon.
Phyllanthus emblica L.
Common name(s): Amla, Indian gooseberry, Amalaki, Dhatri, Amla, Aonla, Amloki / Aamloki, Ambaḷā / Aavla, Āwla / Avala, Amla / Aawla, Amala, Anla, Nellikai, Nellikayi, Nellikka, Usiri / Usirikaya, Nelli, Amla
AntioxidantDigestive (digestant)HepatoprotectiveImmunomodulatorNutritiveRestorativeTonicTrophorestorative
Preparations: Tea (infusion), Decoction, Tincture (alcohol extract), Glycerite (non-alcohol extract), Powder, Syrup, Capsules
Safety: Generally well tolerated as a food. Possible GI upset in sensitive individuals (tannins/acid). Caution with antidiabetic medication (may enhance glucose-lowering) and with anticoagulant/antiplatelet therapy (theoretical additive effects). Insufficient safety data in pregnancy/lactation above typical dietary amounts—use food amounts only. Ensure quality sourcing (proper identity; avoid adulteration).
Pimpinella anisum Anise Coming soon
Safety: Details coming soon.
Piper nigrum Black Pepper Coming soon
Safety: Details coming soon.
Plantago major Plantain Leaf Coming soon
Safety: Details coming soon.
Plantago ovata Psyllium Coming soon
Safety: Details coming soon.
Plantain leaf Coming soon
Safety: Details coming soon.
Pleurotus eryngii King Oyster Coming soon
Safety: Details coming soon.
Polyporus umbellatus Zhu Ling Coming soon
Safety: Details coming soon.