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Medicinal Herbs Database

Explore 2,700+ herbs with evidence-based information

AllDigestiveImmune SupportNervineCardiovascular
LR
Respiratory

Licorice Root

Glycyrrhiza glabra

Licorice root is one of the most widely used herbs in Traditional Chinese Medicine, appearing in numerous classical formulas. It has been used for over 4,000 years for respiratory, digestive, and adrenal support. Glycyrrhizin, its primary active compound, is 50 times sweeter than sucrose.

Sore throat remedy200-600mg standardized extract daily; DGL (deglycyrrhizinated) 380-760mg before meals
PregnancyNursing
LO
Respiratory

Liquidambar orientalis

Liquidambar orientalis

A Middle Eastern tree producing storax resin used in traditional medicine for respiratory conditions and wound healing.

Respiratory expectorantResin topically; 0.5g in steam inhalation
PregnancyNursing
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Respiratory
Anti-inflammatory
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Mens Health
Womens Health
Analgesic
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LS
Respiratory

Liriope Spicata

Liriope spicata

Tuberous root of creeping lilyturf used in Korean Hanbang and TCM for nourishing yin, clearing heat, and supporting lung and stomach conditions.

lung yin deficiency6–12g decoction or 300mg extract
PregnancyNursing
LI
Respiratory

Lobelia inflata

Lobelia inflata

North American herb used by Native Americans and Eclectic physicians; powerful respiratory antispasmodic.

asthma0.2-0.6ml tincture 3 times daily - professional use only
PregnancyNursing
LC
Respiratory

Lonicera caprifolium

Lonicera caprifolium

A European honeysuckle used in folk medicine for respiratory conditions and skin diseases.

Respiratory conditions2-4g dried flowers as tea
PregnancyNursing
LP
Respiratory

Lonicera Periclymenum Herb

Lonicera periclymenum

Fragrant European climbing honeysuckle used in folk medicine for respiratory, antimicrobial, and skin conditions.

respiratory treatment in European folk medicine2-4g dried flowers as tea or 3-5ml tincture
PregnancyNursing
LL
Respiratory

Loquat Leaf

Eriobotrya japonica

The leaves of the loquat tree, one of TCM's most important herbs for stopping cough and resolving phlegm.

Chronic cough6-15g dried leaves in decoction
PregnancyNursing
LH
Respiratory

Lungwort Herb

Pulmonaria officinalis

European herb with spotted leaves resembling diseased lungs; used by doctrine of signatures for respiratory conditions.

Respiratory conditions by doctrine of signatures3-5g dried herb
PregnancyNursing
LL
Respiratory

Lungwort Lichen

Lobaria pulmonaria

Lichen growing on old forest trees used by Native Americans and European herbalists as an expectorant and lung herb by Doctrine of Signatures.

Lung and respiratory conditions2-3g dried lichen as tea or 2ml tincture daily
PregnancyNursing
MD
Respiratory

Ma Dou Ling

Aristolochia contorta

A TCM herb historically used for lung heat cough - now rarely used due to aristolochic acid toxicity.

lung heat coughProfessional use only due to nephrotoxicity
PregnancyNursing
MK
Respiratory

Maekmoondong Korean

Liriope platyphylla

Korean Hanbang version of liriope used for lung and stomach yin tonification, distinct from Chinese Ophiopogon but with similar properties.

Lung yin deficiency in Korean Hanbang6-12g dried root in decoction daily
PregnancyNursing
MD
Respiratory

Magnolia denudata

Magnolia denudata

Classic Chinese ornamental magnolia with pure white flowers blooming before leaves, cultivated for 1500+ years.

Traditional Chinese ornamental and medicinal treeTea from flowers: 3-6g per day
PregnancyNursing
MF
Respiratory

Magnolia Flower Bud

Magnolia biondii

TCM herb made from the dried flower buds used specifically to open the nasal passages, treat nasal congestion, sinusitis, and rhinitis. A specific remedy for nose conditions.

Treat nasal congestion3-9g dried flower bud decoction or 300mg extract daily
PregnancyNursing
MK
Respiratory

Magnolia kobus

Magnolia kobus

Japanese magnolia tree with white flowers used in traditional Japanese Kampo medicine for sinus conditions.

Traditional Japanese Kampo medicine for sinusitis and headachesTea from buds: 3-6g per day
PregnancyNursing
MM
Respiratory

Mai Men Dong

Ophiopogon japonicus

Ornamental and medicinal perennial of East Asia; root tubers used in TCM to nourish lung and stomach yin — one of the premier yin-tonifying herbs.

Lung and stomach yin deficiency in TCM6–15 g dried tubers as decoction; 500 mg extract 2x daily
PregnancyNursing
MH
Respiratory

Maidenhair Herb

Adiantum capillus-veneris

A delicate fern used in Greek, Ayurvedic, and Unani medicine for respiratory conditions; triterpenoids and flavonoids reduce cough and congestion.

Cough and respiratory catarrh in European tradition2-4g dried frond as tea three times daily
PregnancyNursing
MN
Respiratory

Malabar Nut

Justicia adhatoda

The premier Ayurvedic respiratory herb, used for thousands of years for asthma, bronchitis, and tuberculosis.

Asthma5-10ml fresh leaf juice or 2-4g dried leaf as decoction 3x daily
PregnancyNursing
M
Respiratory

Mallow

Malva sylvestris

European and Mediterranean mucilaginous herb used for soothing respiratory, digestive, and urinary tract inflammation; gentle herb with long history.

Respiratory irritationFlower or leaf tea: 2-3 cups daily; topical preparation
PregnancyNursing
MA
Respiratory

Malvaviscus arboreus

Malvaviscus arboreus

Mexican and Caribbean Malvaceae shrub; flowers used in folk medicine for respiratory conditions and fever.

cough3-5g dried flowers tea 3x/day
PregnancyNursing
ME
Respiratory

Marjoram Egyptian

Origanum maru

North African and Middle Eastern marjoram variety used in Egyptian and Levantine traditional medicine for respiratory, digestive, and nervous conditions.

Respiratory infectionsHerb tea: 2-3 cups daily; diluted essential oil for inhalation
PregnancyNursing