Horehound Herb: Respiratory Benefits, Traditional Uses, and Safety Warnings

Horehound (Marrubium vulgare), a perennial mint-family herb native to Europe but now widespread in the Americas, has wrinkled leaves with a rough top and woolly underside. Known since ancient Greek and Egyptian times, its intensely bitter taste makes it popular in candies, syrups, and cough drops.

Health Benefits

• Respiratory relief: Tea loosens phlegm in throat, lungs, and sinuses; alleviates sinus headaches, sore throat, and inflamed lung tissues from colds/flu. Beneficial for wheezing, whooping cough, chronic bronchitis, hacking cough, and bronchial asthma.
• Digestive aid: Increases appetite and improves stomach function.
• Cardiac support: Believed to improve regularity of heart contractions.
• Expectorant and tonic: Helps adults and children with chronic respiratory issues.
• Emergency use: Combined with Plantago lanceolata, may address rattlesnake and rabid dog bites.

Side Effects and Overdose Risks

• Diarrhea, hypoglycemia, contact dermatitis, hallucinations, delirium, dry mouth, dilated pupils, restlessness, coma
• Increases stomach acid—avoid with peptic ulcers or gastritis
• Seeds may be poisonous, especially to children
• Contraindicated for pregnant/nursing women
• Do not combine with cold medications or blood pressure-lowering drugs
• Caution with cardiovascular disease

Preparing Horehound Tea

Steep 2½ teaspoons of fresh dried horehound in a pint of boiling water for 40-45 minutes. Strain, add lemon juice, and drink lukewarm.

Disclaimer: This information is for educational purposes only and not a substitute for medical or herbalist advice.