Mahonia

Last updated on: 29.10.2020

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Synonym(s)

common mahonia; Mahonia aquifolium; Mahonium bark

Definition
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An evergreen bushy shrub species from the genus Mahonia (family of barberry plants), originally native to North America and now also resident in Europe, which reaches Wuc heights of up to 1.8 m. (Berberidaceae). The leathery, up to 30 centimetre long leaves are pinnate in pairs. The flowers (March to June) are yellow. From August onwards, spherical, reddish-brown edible berries develop.

Spectrum of action
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The alkaloids berberine, oxyacanthine and berbamine-containing extracts from the bark of mahonia are used in various anti-eczematous and antipsoriatic topicals.

Field of application/use
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In a prospective, non-randomized study, a cream containing 10% mahony extract was applied to patients with atopic eczema with clear success (Level of incidence: LOE-B). In the same indication, a combination cream (made from: mahony extracts, pansyherb (Violae herba cum flore) and water navelherb (Centellae asiaticae herba) did not show superiority over the vehicle.

Furthermore, there are numerous reports (without evidence) of success with psoriasis vulgaris. Satisfactory personal experiences are available on the "mild" seborrhoeic eczema of adults .

Dosage
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Apply a thin layer 2-3 times/day on the affected skin areas and massage in lightly.

Undesirable effects
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Allergic skin reactions.

Standard concentration
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10% as ointment.

Trade names
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Various Externa (e.g. Rubisan® cream and ointment) contain Mahonia mother tincture in different applications and concentrations.

Literature
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  1. Donsky H et al (2007) Mahonia aquifolium extract for the treatment of adult patients with atopic dermatitis. At J Ther 14: 442-446
  2. Reuter J et al (2010) Which plant for which tanuki? Part 1: Atopic dermatitis, psoriasis, acne, condylomas and herpes simplex. JDDG 10: 788-796

Last updated on: 29.10.2020