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Medicinal Herbs Database

Explore 2,700+ herbs with evidence-based information

AllDigestiveImmune SupportNervineCardiovascular
PG
Digestive

Psidium Guajava Leaf

Psidium guajava

Leaves of the guava tree used widely in traditional medicine across the tropics for diarrhea, wounds, and diabetes management.

diarrhea5–10g dried leaves as tea 3x daily
PregnancyNursing
PG
Digestive

Psidium Guineense

Psidium guineense

Small tree native to tropical America used in folk medicine across Brazil and the Caribbean for diarrhea, dysentery, and wound healing.

diarrhea5–10g leaves as tea 3x daily or fruit as food
PregnancyNursing
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Respiratory
Anti-inflammatory
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Liver Support
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Skin and Topical
Urinary
Musculoskeletal
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Antimicrobial
Nootropic
Nutritive
Mens Health
Womens Health
Analgesic
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P
Digestive

Psyllium

Plantago ovata

Psyllium is a soluble fiber derived from the seeds of Plantago ovata, a plant native to India. It is one of the most well-studied and widely used fiber supplements worldwide. The FDA has approved a health claim linking psyllium consumption to reduced risk of coronary heart disease.

Constipation remedy5-10g (1-2 tablespoons) in water 1-3 times daily
PregnancyNursing
PC
Digestive

Ptychotis coptica

Trachyspermum copticum

North African and Middle Eastern Apiaceae similar to ajwain, used for digestive and respiratory conditions.

Digestive conditions in North African medicine1-3 g seeds as tea
PregnancyNursing
PL
Digestive

Purple Loosestrife

Lythrum salicaria

European perennial wetland plant with striking purple flowers; powerful astringent used across European folk medicine for diarrhea and wounds.

Diarrhea and dysentery in European and North American medicine2–4 g dried herb as tea; 2–4 mL tincture 3x daily
PregnancyNursing
PS
Digestive

Puschkinia scilloides

Puschkinia scilloides

Small spring bulb from Middle East and Caucasus with striped white-blue flowers, traditional medicine.

Traditional Caucasian folk medicine for digestive conditionsFlower tea: 1-2g per cup 2x/day
PregnancyNursing
PC
Digestive

Pyrus Communis Herb

Pyrus communis

Pear tree whose bark, leaves, and fruit are used in folk medicine for urinary conditions, digestive health, and as a nutritive food.

urinary health in European folk medicineFruit freely as food; 2-4g leaf or bark tea
PregnancyNursing
QP
Digestive

Qing Pi

Citrus reticulata immature

Immature, unripe tangerine peel; stronger qi-moving and liver-resolving properties than aged peel in TCM — more aggressive action.

Liver qi stagnation in TCM3–9 g dried peel as decoction; 300–500 mg extract 2x daily
PregnancyNursing
QP
Digestive

Quercus petraea

Quercus petraea

A European oak with similar medicinal bark properties to Q. robur; used as astringent and wound healer.

Astringent use2-3g dried bark as tea
PregnancyNursing
RP
Digestive

Rhamnus purshiana

Rhamnus purshiana

Native American sacred bark used as laxative; bark must be aged one year before use due to harsh fresh compounds.

constipation20-30mg hydroxyanthracene derivatives at bedtime
PregnancyNursing
RO
Digestive

Rheum officinale

Rheum officinale

Classic TCM herb (Da Huang) for constipation, liver conditions, and as anti-inflammatory; stronger than culinary rhubarb.

constipation1-3g dried root for laxative; 0.5-1g for digestive tonic
PregnancyNursing
RR
Digestive

Rheum rhabarbarum

Rheum rhabarbarum

Familiar garden plant whose root is used medicinally in TCM and Western herbalism for constipation and liver conditions.

Constipation in TCM1-4 g dried root for laxative; 0.5-1 g tonic dose
PregnancyNursing
RT
Digestive

Rheum Tanguticum

Rheum tanguticum

Root of Tibetan rhubarb used in TCM and Tibetan medicine as a powerful purgative, liver herb, and blood-moving agent.

constipation3–12g decoction or 200–500mg extract
PregnancyNursing
RM
Digestive

Rhinanthus minor

Rhinanthus minor

A hemiparasitic meadow plant used in folk medicine as a digestive and against scrofula.

Digestive complaints2g dried herb as tea
PregnancyNursing
RU
Digestive

Ribes uva-crispa

Ribes uva-crispa

European fruit shrub; berries and leaves used in traditional medicine for digestive and inflammatory conditions.

digestive disorders3-5g leaf tea or 100-200g fresh fruit daily
PregnancyNursing
RC
Digestive

Ricinus communis

Ricinus communis

Tropical shrub whose seeds yield castor oil (laxative) and deadly ricin toxin; wide traditional use.

constipationCastor oil: 15-60ml as laxative; topical for skin/hair
PregnancyNursing
RW
Digestive

Romanian Wormwood

Artemisia absinthium var. pannonica

Central European wormwood used in Romanian and Hungarian folk medicine for digestive bitters and antiparasitic treatments.

digestive bitter tonic in Romanian wine1-2g dried herb as brief tea course
PregnancyNursing
RR
Digestive

Rosa rugosa

Rosa rugosa

East Asian rose with large flavorful hips and petals used medicinally for digestive, liver, and skin conditions.

Digestive conditions in TCM5-10 g hips or 2-4 g dried petals as tea
PregnancyNursing
RL
Digestive

Rudbeckia laciniata

Rudbeckia laciniata

Woodland coneflower used by Cherokee for indigestion and fever; roots as food by some tribes.

indigestion3-5g dried herb tea 2x/day
PregnancyNursing
SN
Digestive

Sa Nhan

Amomum villosum

Vietnamese cardamom used in traditional medicine for digestive weakness, nausea, and morning sickness.

digestive weakness3-6g dried seed daily
PregnancyNursing