🌾Vietnamese Traditional Medicine

Fritillary Bulb (Xuyen Boi Mau)

Fritillaria thunbergii

About Fritillary Bulb (Xuyen Boi Mau)

Fritillary Bulb (Xuyen Boi Mau) (Fritillaria thunbergii) is a herb used in the Vietnamese Traditional Medicine tradition to help with Cough, Respiratory Issues, Lymph Support, and Thyroid. The bulb is the part traditionally used, taken internally.

Botanical background

Fritillaria thunbergii is an Asian plant species of the lily family. It is native to Kazakhstan and in Xinjiang Province of western China, though cultivated in other places and naturalized in Japan and in other parts of China.

Source: Wikipedia, via iNaturalist

Parts used

Bulb · internal
🫖

Decoction

1–2 cups daily
  • Add 1–2 tsp of dried Fritillary Bulb (Xuyen Boi Mau) to 2 cups of cold water.
  • Bring to a boil, then simmer for 15–20 minutes.
  • Strain and drink warm.
💧

Tincture

20–40 drops in water, 2–3× daily
  • Pack dried Fritillary Bulb (Xuyen Boi Mau) into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
💊

Powder / Capsule

500 mg – 1 g, 1–3× daily
  • Grind dried Fritillary Bulb (Xuyen Boi Mau) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.
♨️

Steam Inhalation

1–2× daily during acute symptoms
  • Add 2–3 tbsp of Fritillary Bulb (Xuyen Boi Mau) to a bowl of just-boiled water.
  • Drape a towel over your head and inhale steam for 5–10 minutes.

Pregnancy, Breastfeeding & Children

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

Pregnancy

Insufficient Data

No specific pregnancy safety research is documented for this herb in our references. This doesn't mean it's unsafe — it means it hasn't been well studied. Treat as unstudied and avoid unless a midwife or doctor familiar with your pregnancy advises otherwise.

Breastfeeding

Insufficient Data

No specific breastfeeding safety research is documented for this herb in our references. Treat as unstudied and consult a lactation consultant, midwife, or doctor before use.

Children

Insufficient Data

No specific pediatric safety/dosage research is documented for this herb in our references. Treat as unstudied and consult a pediatrician or pediatric herbalist before giving to a child.

Contraindications

  • Thyroid disorders — may interfere with levothyroxine and other thyroid medications

Warnings

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Drug & herb interactions

No specific drug or herb interactions are documented for Fritillary Bulb (Xuyen Boi Mau) in our references. This doesn’t mean none exist — always check with a pharmacist or doctor before combining any new herb with prescription medication.

Where to find in nature

Native region

Vietnam, southern China

Climate

Tropical to subtropical

Habitat

Tropical forests, rice paddy borders, and village herb gardens of Vietnam

🌿 To see Fritillary Bulb (Xuyen Boi Mau) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.

Where to buy

In store

  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices
  • Farmers markets with herb vendors

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs — certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient — verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Fritillary Bulb (Xuyen Boi Mau), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.