Pinellia (Ban Xia) (Pinellia ternata)

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Pinellia (Ban Xia)

半夏 (Bàn Xià) · Pinellia ternata

The primary TCM herb for resolving phlegm and stopping vomiting. Always used in processed form (raw is toxic). Key ingredient in formulas for nausea, cough, and insomnia with phlegm.

Evidence Score
6/10
Moderate
Safety
Use with caution

Good For

Key Benefits

May support healthy digestive function

Traditionally used to harmonize the stomach and intestines

May promote relaxation and improve sleep quality

Traditionally used to calm the mind and support restful sleep

How to Take

Typical dose: Follow product label. Typically 300-600mg extract, taken 30-60 minutes before bed
Forms: capsule, powder, tea/decoction, tincture
Timing: Take with food unless otherwise directed. Allow 2-4 weeks for full effects with tonic herbs
Start with lower doses and increase gradually. Quality and standardization vary between brands.

Safety & Interactions

Possible Side Effects

  • Digestive discomfort at higher doses
  • May cause drowsiness or stimulation depending on the herb
  • Allergic reactions possible in sensitive individuals

Do Not Use If

  • Pregnancy and breastfeeding (insufficient safety data)
  • Children under 12 without professional guidance
  • Scheduled surgery (stop 2 weeks before)

Drug Interactions

  • May interact with prescription medications
  • May affect blood sugar or blood pressure medications
  • Consult pharmacist before combining with other supplements

Traditional Use

In Traditional Chinese Medicine, 半夏 (Bàn Xià) has been used for centuries. It is traditionally used to calm the spirit (shen) and settle the heart-mind. It supports the spleen and stomach — the foundation of post-natal qi production in TCM theory.

Modern Research

Moderate research exists for this herb, including some clinical trials and substantial preclinical data. While not as extensively studied as top-tier herbs, the evidence supports several traditional uses. More human trials would strengthen the evidence base.

View all studies on PubMed for Pinellia ternata

Where to Buy

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