Definition:

Oregon Grape is a native evergreen shrub found throughout the Pacific Northwest, recognized by its holly-like leaves and clusters of yellow flowers. The plant produces small, dark blue berries, but it’s the root that is primarily used in herbal medicine.

Botanical Name: Mahonia aquifolium

Common Name: Oregon Grape

Family: Berberidaceae

Part Used: Root, bark, and stem

Energetics:

• Taste: Bitter
• Temperature: Cooling, drying

Actions:

• Antimicrobial
• Anti-inflammatory
• Hepatic (supports liver function)
• Bitter tonic (stimulates digestion)
• Cholagogue (promotes bile flow)
• Antifungal
• Astringent

Body Systems:

• Digestive System: Oregon Grape acts as a digestive stimulant, increasing bile production and supporting liver detoxification. It is useful for sluggish digestion and liver stagnation.
• Immune System: The high berberine content provides antimicrobial properties, making it effective in fighting bacterial, viral, and fungal infections.
• Skin: It is often used externally for conditions like psoriasis and eczema, helping to clear skin irritations by addressing underlying liver and immune issues.

Primary Constituents:

• Alkaloids: Berberine, hydrastine, berbamine (antimicrobial and liver-supporting)
• Tannins: Contribute to its astringent properties
• Isoquinoline Alkaloids: Promote liver detox and bile secretion

Safety Precautions:

• Pregnancy & Lactation: Not recommended during pregnancy, as high doses of berberine can stimulate uterine contractions.
• Long-term Use: Prolonged use of high doses can irritate the gut lining; best used for short-term or in moderate amounts under guidance.

Traditional & Modern Uses:

• Liver & Digestive Health: Traditionally used as a bitter tonic to stimulate digestion and liver function. Oregon Grape is useful in cases of sluggish digestion, poor liver function, and bile flow issues.
• Skin Conditions: Oregon Grape is effective for skin conditions like psoriasis, eczema, and acne due to its ability to clear heat and support detoxification.
• Antimicrobial: Its high berberine content makes it effective against infections, including bacterial, viral, and fungal infections, especially in the digestive and respiratory systems.

Preparations & Dosage:

• Decoction: 1-2 tsp dried root in 1 cup of water; simmer for 20 minutes, strain, and drink 1-2 times daily.
• Tincture: 2-4 ml, up to three times daily.
• Topical Use: Oregon Grape can be made into a salve or lotion for external use in treating skin conditions like eczema or psoriasis.