Lungwort
Generally Safe

Lungwort

Pulmonaria officinalis
Jerusalem CowslipSpotted DogMary's Tears

Important Disclaimer

This is not medical advice. Consult a qualified healthcare provider before using any remedy, especially if pregnant, breastfeeding, on medication, or managing a health condition.

Overview

A spotted-leaf herb historically used for respiratory ailments, rich in mucilage and tannins that soothe irritated lung tissue and ease coughs. Named for the Doctrine of Signatures, its white-spotted leaves were thought to resemble diseased lungs, guiding its traditional use as a premier lung tonic in European herbalism.

Traditional Use

Named for the Doctrine of Signatures (spotted leaves resembling diseased lungs), lungwort has been used since medieval times for respiratory complaints including bronchitis, asthma, and chronic coughs. European herbalists valued it as a gentle expectorant and lung tonic. Monastery gardens across Europe cultivated it as a standard remedy for chest complaints.

Key Active Compounds

Mucilage

Polysaccharides that coat and soothe irritated respiratory tissues, reducing cough reflex and protecting inflamed mucous membranes.

Tannins

Astringent compounds that tone tissues, reduce excess mucus production, and provide mild antimicrobial effects.

Allantoin

Cell-proliferant compound that promotes tissue healing and regeneration in damaged respiratory passages.

Saponins

Natural surfactants that help loosen and expel mucus from the respiratory tract, acting as gentle expectorants.

Evidence-Based Benefits

Respiratory Support

Traditional use

Soothes irritated airways, reduces cough frequency, and supports healing of inflamed lung tissue in chronic respiratory conditions.

Cough Relief

Traditional use

Mucilage content coats throat and bronchial passages, providing immediate relief from dry, irritating coughs.

Lung Tissue Healing

Traditional use

Allantoin and mucilage work together to promote repair of damaged respiratory epithelium after infections or irritation.

Mild Expectorant

Traditional use

Helps thin and mobilize mucus, making it easier to clear congestion from the respiratory tract.

Common Preparation Methods

Infusion (Tea)

Steep 1-2 teaspoons dried leaves in 1 cup hot water for 10-15 minutes. Strain and drink 2-3 times daily.

Dosage: 2-3 cups daily

Best taken between meals for respiratory support.

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Tincture

Take 2-4 ml of 1:5 tincture in water, 3 times daily.

Dosage: 2-4 ml, 3x daily

With or without food.

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Syrup

Combine strong infusion with honey to create a soothing cough syrup. Take 1 tablespoon as needed.

Dosage: 1 tablespoon up to 4x daily

Particularly soothing for nighttime coughs.

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Steam Inhalation

Add dried leaves to hot water and inhale steam for 5-10 minutes to directly soothe respiratory passages.

Dosage: 1-2 times daily

Morning and evening for best results.

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Safety & Cautions

Please read carefully before use

Contraindications

  • Pregnancy and breastfeeding (insufficient safety data)
  • Liver disease (contains pyrrolizidine alkaloids in trace amounts)
  • Scheduled surgery (may affect blood clotting)

Drug Interactions

  • May enhance effects of anticoagulant medications
  • Theoretical interaction with immunosuppressants

Possible Side Effects

  • Generally well-tolerated
  • Rare: mild digestive upset
  • Very rare: allergic skin reactions

Special Populations

  • Avoid during pregnancy and breastfeeding
  • Short-term use recommended; avoid long-term continuous use
  • Choose reputable sources to ensure quality

Sources & References

2.
European Herbal Monographs: Respiratory Herbs

European Medicines Agency, 2020

Quick Reference

Family / Type:

Boraginaceae

Parts Used:

Leaves, Aerial parts

Taste / Profile:

Mucilaginous, slightly astringent, mild

Safety First

Always consult with a qualified healthcare provider before starting any new remedy, especially if you have existing health conditions or take medications.