
Alnus rubra
Also known as Alnus, Tag alder, Oregon alder, Western alder.
Alnus rubra, red alder, is a fast-growing deciduous tree of the birch family native to the Pacific coast of North America, where it thrives in moist lowland and riparian sites. The inner bark is the part used medicinally. It entered Eclectic practice in the nineteenth century as an alterative for chronic skin and glandular complaints, valued for its perceived ability to improve nutrition and eliminate waste through the skin and lymphatics.

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Ask HerbertChronic skin disease in a patient whose tissue nutrition and waste elimination both seem sluggish
Scrofulous or indurated glandular swellings in a debilitated, poorly nourished patient
Pregnancy: Avoid in pregnancy due to lack of modern safety data on internal use.
Breastfeeding: Avoid in lactation due to lack of modern safety data.
The record lists 3 contraindications; open the plate in the library to read them in full.
Eclectic physicians reached for alder bark in chronic, low-grade conditions where the skin looked unhealthy and healing was slow: indolent eruptions, scrofulous glandular swellings, and general states of poor tissue nutrition with sluggish elimination.
| Preparation | As written | Metric |
|---|---|---|
| Tincture (1:5, 45% alcohol) | 1-4 mL three times daily | 1-4 mL |
| Bark decoction | 2-4 g dried bark simmered gently, taken up to three times daily | 2000-4000 mg |
| Topical wash or poultice | strong decoction applied externally to skin lesions as needed | |
| Specific Medicine Alnus | Dose, from one to sixty minims. | 0.06-3.7 mL |
| It can be given as high as thirty drops at a dose, four times a day and will undoubtedly add something to our list of good remedies for this disease. | 0.6 mL |
Doses are reproduced from the sources for practitioners and are not a recommendation for any person.
Overview. Alnus rubra, red alder, is a fast-growing deciduous tree of the birch family native to the Pacific coast of North America, where it thrives in moist lowland and riparian sites. The inner bark is the part used medicinally. It entered Eclectic practice in the nineteenth century as an alterative for chronic skin and glandular complaints, valued for its perceived ability to improve nutrition and eliminate waste through the skin and lymphatics.
Clinical Notes. Eclectic physicians reached for alder bark in chronic, low-grade conditions where the skin looked unhealthy and healing was slow: indolent eruptions, scrofulous glandular swellings, and general states of poor tissue nutrition with sluggish elimination.
Therapy. This agent combines both alterative and tonic astringent properties. It removes waste products, improves the tone of mucous structures and increases the secretory action of the glands of these structures.
Specific indications and reasoning. (TAG ALDER.) Preparation.-Prepare a tincture from the recent bark Sviij. to Alcohol 50° Oj. Dose gtta. j. to xx. We may employ the Alnus in infusion, or in the form of tincture with dilute alcohol; the first being preferable if we wish its greatest influence.
Drawn from Scudder's Specific Medication and Specific Medicines; Ellingwood's American Materia Medica, Therapeutics and Pharmacognosy, and the Bountiful Herbs editorial.

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