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Medicinal Herbs Database

Explore 2,700+ herbs with evidence-based information

AllDigestiveImmune SupportNervineCardiovascular
OL
Respiratory

Osmorhiza longistylis

Osmorhiza longistylis

Anise-scented forest herb used by Native Americans for coughs, digestive complaints, and as eyewash.

cough2-3g dried root or 1-2ml tincture daily
PregnancyNursing
OA
Respiratory

Oud Al Qust

Saussurea lappa

A fundamental Unani herb known as Qust al Hindi, used for respiratory, digestive, and skin conditions.

respiratory conditions1-3g root powder daily
PregnancyNursing
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Respiratory
Anti-inflammatory
Adaptogen
Liver Support
Hormonal
Skin and Topical
Urinary
Musculoskeletal
Antioxidant
Antimicrobial
Nootropic
Nutritive
Mens Health
Womens Health
Analgesic
Metabolic
OD
Respiratory

Ox-Eye Daisy

Leucanthemum vulgare

Common European meadow daisy used in folk medicine for respiratory conditions, wounds, and menstrual disorders.

Respiratory and cough in European folk medicine2-4g fresh flowers tea 3x daily; topical poultice from flowers
PregnancyNursing
O
Respiratory

Oxlip

Primula elatior

European woodland primrose; flowers and roots used interchangeably with cowslip in traditional European medicine for respiratory and nervous conditions.

Coughs and bronchitis in European folk medicine2–3 g root as decoction; 1–2 g flowers as tea
PregnancyNursing
OB
Respiratory

Oxtongue Bugloss

Anchusa azurea

Perennial Mediterranean herb with brilliant blue flowers; used in traditional Mediterranean and Middle Eastern medicine for respiratory and skin conditions.

Respiratory catarrh in Mediterranean folk medicine1–2 g dried leaves as tea; topical poultice
PregnancyNursing
PD
Respiratory

Pang Da Hai Seed

Sterculia lychnophora

TCM seed that expands dramatically in water; clears heat, opens voice, and moistens intestines; used for dry throat and voice.

Clears throat heat and hoarseness2-4 seeds steeped in hot water
PregnancyNursing
PC
Respiratory

Patikan Cina

Euphorbia thymifolia

Southeast Asian herb used in traditional medicine across Philippines, Indonesia, and India for asthma, respiratory conditions, and wound healing.

AsthmaHerb tea: 1-2 cups daily; topical poultice for wounds
PregnancyNursing
PT
Respiratory

Paulownia tomentosa

Paulownia tomentosa

Fast-growing deciduous tree from China with large heart-shaped leaves and fragrant purple flowers, used in TCM.

Traditional Chinese medicine uses for coughs and bronchitisTea from flowers: 5-10g per cup; Extract: 2-3ml 3x/day
PregnancyNursing
PS
Respiratory

Perilla Seed TCM

Perilla frutescens var. frutescens

TCM herb that directs lung qi downward, transforms phlegm, and moistens the intestines. Used in respiratory conditions where qi rebels upward and phlegm obstructs.

Direct lung qi downward3-10g dried seed decoction or 300-500mg extract daily
PregnancyNursing
PI
Respiratory

Petunia Integrifolia Herb

Petunia integrifolia

Wild ancestor of garden petunia from South America used in Argentine folk medicine for inflammation and respiratory conditions.

treatment of respiratory inflammation in Argentine folk medicine2-4g dried herb as tea
PregnancyNursing
PP
Respiratory

Peucedanum palustre

Peucedanum palustre

European marsh Apiaceae used in folk medicine for respiratory conditions.

Respiratory conditions in European folk medicine2-4 g dried herb as tea
PregnancyNursing
PA
Respiratory

Picea Abies

Picea abies

European spruce tree used in Scandinavian folk medicine for respiratory conditions; shoots used as a traditional vitamin C and antimicrobial remedy.

Respiratory infectionsYoung shoot tea: 1-2 cups daily; diluted essential oil topically
PregnancyNursing
PM
Respiratory

Pimpinella Major

Pimpinella major

Perennial herb of European meadows used in traditional European herbal medicine for respiratory conditions and catarrh.

respiratory catarrh3–5g root tea 3x daily
PregnancyNursing
PP
Respiratory

Pinon Pine

Pinus edulis

Southwestern North American pine used by Pueblo and Navajo peoples for respiratory conditions, skin, and as a food source; resin has antimicrobial properties.

Respiratory infectionsResin topically; pine needle tea 1-2 cups daily; pine nuts as food
PregnancyNursing
PS
Respiratory

Pinus strobus

Pinus strobus

A North American pine whose needles are rich in Vitamin C; used by Native Americans for respiratory and scurvy prevention.

Scurvy prevention2-3g pine needles as tea
PregnancyNursing
PL
Respiratory

Plantago lanceolata

Plantago lanceolata

European plantain widely used for respiratory conditions and wound healing, rich in aucubin and mucilage.

cough2-3g dried herb tea 3x/day
PregnancyNursing
PO
Respiratory

Plantain Oval-Leaved

Plantago media

European grassland plantain with soothing and anti-inflammatory properties for respiratory and skin.

European folk respiratory herb2-4g dried herb as tea or topical poultice
PregnancyNursing
PG
Respiratory

Platycodon Grandiflorus

Platycodon grandiflorus

East Asian bellflower root used in TCM and Korean Hanbang for respiratory conditions including cough, sore throat, and tonsillitis.

treatment of cough and sore throat in TCM3-9g dried root decoction or 400mg saponin extract
PregnancyNursing
PH
Respiratory

Pleurisy Herb

Asclepias tuberosa

A North American herb used for pleurisy and respiratory infections by many Native American nations; increases expectoration and has diaphoretic activity.

Pleurisy and lung infections in Native American medicine2-4g dried root as decoction or 3ml tincture three times daily
PregnancyNursing
PC
Respiratory

Pluchea carolinensis

Pluchea carolinensis

Caribbean and South American Pluchea used in folk medicine for respiratory and digestive conditions.

Respiratory conditions in Caribbean folk medicine5-10 g leaf decoction
PregnancyNursing