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Sundew (Drosera)

EMA-monograph traditional European herb for productive cough, central in old-tradition whooping cough management.

Why

Sundew (Drosera rotundifolia and related species) holds an EMA HMPC Traditional Use monograph for relief of cough associated with cold. A carnivorous bog plant traditionally used in European phytotherapy for productive cough, historical place in whooping cough management before vaccination. Wild-collected supply has been a sustainability concern; cultivated material is increasingly used.

How it works

Naphthoquinones (plumbagin, droserone) have antispasmodic and antibacterial effects in vitro. Mucilage provides demulcent action on inflamed mucosa. Clinical translation to human cough endpoints is documented mostly via traditional use.

Expected onset · Symptomatic relief within days

How to take

Dosage

Dried herb: 1–2 g as infusion, three times daily. Tincture: 1–2 ml three times daily.

Timing

Three times daily during symptomatic phase

On the label

Drosera rotundifolia or related species, sustainably sourced (cultivated rather than wild-collected where possible).

Ideal for

Adults and children (typically 4+ years) with productive cough associated with cold seeking European-tradition options.

Safety

Generally well tolerated at traditional doses. Allergic reactions possible. Pregnancy and breastfeeding data limited.

Evidence

At a glance

EMA classifies sundew herb at Traditional Use for cough associated with cold. Traditional-use registration only, no Cochrane review, no Well-Established Use monograph, no EFSA-authorised claim, and no major-journal RCT supports a specific therapeutic effect. Inclusion here reflects the documented tradition; modern clinical evidence is limited.

Limitations

Traditional-use registration only, no Cochrane review, no Well-Established Use monograph, no EFSA-authorised claim, and no major-journal RCT supports a specific therapeutic effect. Inclusion here reflects the documented tradition; modern clinical evidence is limited.

Where to get it

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