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Leech (Shui Zhi) Tincture

A traditional tincture preparation using Leech (Shui Zhi) (Hirudo nipponica), addressing circulation, pain, fibroids.

tincturestcmIntermediate⏱ 4–6 weeks (steeping)Shelf life: 1–2 years in a dark glass bottleDosage: 20–40 drops in water, 2–3× daily

Generated from this herb's full profile — safety warnings, contraindications, and sourcing.

Benefits

CirculationPainFibroidsHeart HealthEdemaBlood Stasis

Ingredients

  • Leech (Shui Zhi) — As needed

Instructions

  1. Pack dried Leech (Shui Zhi) into a jar and cover with 40–60% alcohol.
  2. Seal and steep for 4–6 weeks, shaking daily.
  3. Strain and store in a dark dropper bottle.

Interactions & contraindications

Leech (Shui Zhi)

Full profile
  • Pre-surgery — discontinue at least 2 weeks prior (potential antiplatelet effect)
  • Hormone-sensitive conditions (breast/ovarian cancer, endometriosis) — phytoestrogenic activity possible
  • Significant kidney impairment — diuretic herbs may worsen renal function

No herb-specific pregnancy/child safety research is documented for Leech (Shui Zhi) in our references — the guidance below is based on its general effect category, not research on Leech (Shui Zhi) itself. Always confirm with a midwife, doctor, or pediatrician.

Pregnancy

Use Caution

This herb may affect blood pressure. Since blood pressure changes are a significant pregnancy risk factor (e.g. preeclampsia), herbs in this category are generally used only under medical supervision rather than self-directed — this is a general, mechanism-based caution, not herb-specific research.

Breastfeeding

Use Caution

Generally used cautiously during breastfeeding, particularly if the nursing parent is also on blood pressure medication.

Children

Use Caution

Blood-pressure-active herbs are generally used cautiously in children and typically only under pediatric guidance.

May thin the blood

Watch for: Anticoagulants (warfarin), antiplatelets (aspirin, clopidogrel), and other blood-thinning herbs or supplements (ginkgo, garlic, fish oil, vitamin E)

Combining blood-thinning substances can increase bleeding risk, including before surgery or dental work.

May affect blood pressure

Watch for: Antihypertensive medications (ACE inhibitors, beta-blockers, calcium channel blockers, diuretics)

Combined use can push blood pressure too high or too low — monitor readings if you take blood pressure medication.

May have a diuretic effect

Watch for: Diuretic medications and lithium

Additive fluid loss can affect electrolyte balance and change how the body clears lithium.