Xī Yáng Shēn · American Ginseng
Xī Yáng Shēn (西洋参, American Ginseng) is a herb of Cool nature and Bitter, Sweet flavor, in the “Qi Tonifying” category. Tradition uses it to tonify Original Qi, Nourish Yin, Tonify Qi.
Energetic profile
- Pinyin name
- Xī Yáng Shēn
- Characters
- 西洋参
- Botanical name
- Panax quinquefolius L.
- Family
- Araliaceae
- Part used
- Root
- Nature
- Cool
- Flavor
- Bitter, Sweet
- Meridians
- Stomach, Heart, Kidney, Lung
- Category
- Qi Tonifying
- Toxicity
- Non-toxic
- Pregnancy
- Caution
- Origin
- North America, China (cultivated)
Actions according to tradition
- Tonify Original Qi
- Nourish Yin
- Tonify Qi
- Clear Fire
- Generate Body Fluids
Traditional uses
- Qi and Yin deficiency with heat signs
- Chronic cough with dryness
- Fatigue with night sweats
- Thirst and dry mouth
- Post-illness recovery
Studied effects and current applications
- Gentle energy without overheating
- Improves glycemic control
- Cognitive support
- DNA protection from oxidative stress
- Cardiovascular benefits
Applications under investigation
- Type 2 diabetes
- Chronic fatigue with heat
- Working memory support
- Hypertension (with diabetes)
- Oxidative stress protection
An effect being investigated does not mean it has been proven in humans.
Contraindications and adverse effects
Absolute contraindications
- Cold deficiency patterns
- Dampness
Relative contraindications
- Pregnancy (first trimester)
- Diabetes medications
- Pregnancy
- Use with caution, less heating than Asian Ginseng.
- Breastfeeding
- Use with caution.
- Children
- Generally avoided in young children.
- Older adults
- Good for Qi-Yin deficiency in elderly.
Possible adverse effects
- Rare: digestive upset
- Hypoglycemia (with diabetes meds)
When to stop
- Signs of cold
- If blood sugar too low
Interactions with medications
| Group | Drugs | Severity | Effect and recommendation |
|---|---|---|---|
| Diabetes medications | Insulin, Metformin | Moderate | May enhance hypoglycemic effect Monitor blood glucose |
| Anticoagulants | Warfarin | Mild | May affect clotting Monitor INR if combined |
Reference dose
- Decoction
- 3-9 grams daily
- Powder
- 1-3 grams daily
- Extract
- As per label
- Tincture
- 1-2 ml (1:5) 2-3 times daily
- Acute use
- 1-2 weeks
- Chronic use
- 3-6 weeks, then rest
- Maximum
- 3 months then break
- Children
- Generally avoided in children under 12.
Forms of preparation
Simmer 3-9g for 45-60 min. Can also steep as tea.
Qi-Yin deficiency
Approximate doses from the literature; they are not a prescription. Consult a professional.
Active compounds
Ginsenosides (panaxosides) with a predominance of Rb1 and Rg1
Damman triterpene saponins · Adaptogenic, neuroprotective, hypoglycemic
Glucocorticoid receptor modulation, neuroprotection via AKT/PI3K · 0.5-1.5%; Rb1>Rg1 ratio unlike P. ginseng
Damman triterpene saponins · Neuroprotective, cognitive stimulant, antitumor (Rg3)
Cholinergic activation, reduction of neuronal inflammation, inhibition of tumor angiogenesis (Rg3) · 0.3-1.0%
acidic polysaccharides · Hypoglycemic, immunostimulant
α-glucosidase inhibition, dendritic cell activation · 15-25% in aqueous extract
Harvesting and processing
- Harvest
- Autumn (September-October), 4-6 year old plants
Harvested primarily in the US (Wisconsin), Canada and mainland China as a crop. The roots need 4-6 years. They are washed, dried in the sun or in a gentle dryer to preserve the unique ginsenosides of Panax quinquefolius (high Rb1, Rc).
Root washed, blanched briefly with hot water, dried in the sun. Also available in fine powder or slices. It is not steam processed like Hóng Shēn as its nature is cool-refreshing.
Health notice. Educational and study content. It describes concepts of Traditional Chinese Medicine and does not replace diagnosis or treatment by a healthcare professional. Needling, medicinal herbs and invasive techniques must be applied by trained professionals. Safety guide.
