Stephania leaves (scientific name: Stephania glabra or Stephania japonica depending on the region) are climbing plants in the Menispermaceae family, commonly used in traditional medicine in Vietnam and other Asian countries. They are valued for various health benefits, especially for supporting respiratory, digestive, and pain relief functions.

---

1. Main Components and Benefits

Stephania leaves contain alkaloids, flavonoids, tannins, essential oils, and saponins, providing the following pharmacological effects:

A. Respiratory Support

• Helps dilate bronchi and reduce coughing, aiding phlegm clearance.

• Traditionally used to support asthma and chronic bronchitis.

B. Anti-inflammatory and Pain Relief

• Compounds in the leaves have anti-inflammatory and mild analgesic effects, often used for muscle pain, joint pain, or abdominal pain.

C. Digestive Support

• Stimulates digestion and reduces bloating or indigestion.

• Used in folk medicine to aid digestion after meals.

D. Antibacterial

• Alkaloids and essential oils can inhibit some pathogenic bacteria, supporting mild respiratory and skin conditions.

---

2. How to Use Stephania Leaves

Leaves are usually used fresh or dried, prepared as decoctions, teas, or combined with other herbs.

Method 1: Decoction

• Prepare 10–15g of fresh or dried leaves.

• Wash, place in a pot with 300–500ml water, simmer until about 100–150ml remains.

• Divide into 2–3 doses per day.

Method 2: Combination with Other Herbs

• Leaves + chive leaves + honey: supports cough relief and phlegm clearance.

• Leaves + ginger + rock sugar: relieves cold symptoms and sore throat.

Method 3: External Use

• Crush fresh leaves and apply to swollen areas, aches, or insect bites.

• Clean the skin before application to prevent infection.

---

3. Precautions

• Do not exceed recommended amounts, as some alkaloids can be toxic in high doses.

• Pregnant or breastfeeding women and patients with liver or kidney disease should consult a doctor before use.

• Stephania leaves are supportive for mild symptoms and should not replace conventional medicine for serious illnesses.