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CAO BOI TRI CAY THAU DAU (Vietnamese Herbal Ointment). April 1, 2024.


The State Childhood Lead Poisoning Prevention Branch (CLPPB) urgently alerts you to a significant health risk associated with a Vietnamese herbal ointment called "CAO BOI TRI CAY THAU DAU." This product, marketed primarily through Facebook groups in Vietnamese as a “miracle” treatment for hemorrhoids with suggested intra-rectal application, has been linked to a serious case of adult lead poisoning. Product images are provided at the bottom of this email.

What we know so far:

  • Extremely High Lead Content: Laboratory analysis of "CAO BOI TRI CAY THAU DAU" has revealed an extremely high lead content, posing a severe risk of lead poisoning to users.
  • Product Marketing: The product is promoted for the treatment of hemorrhoids but is hazardous to health due to its lead content.
  • Product Availability: The product has been purchased on Facebook and mailed to the U.S. by a friend or relative in Vietnam. Sellers in Vietnam cannot ship the product directly to the U.S., but it is unclear whether this product can be purchased from informal marketplaces in the U.S.
  • Notification: The State Food and Drug Branch has been notified, and a comprehensive public announcement is forthcoming. Our priority is the health and safety of our community, especially our children, who are most vulnerable to the effects of lead poisoning.


Immediate Actions and Recommendations:
  1. Cease Use Immediately: If you or someone you know uses "CAO BOI TRI CAY THAU DAU," we strongly advise discontinuing its use immediately and consulting a healthcare provider for lead testing.
  2. Community Awareness: We urge local communities especially Vietnamese American communities, to spread awareness about the dangers of this product. It's crucial to communicate this risk to prevent further cases of lead poisoning. Messages for the public are being developed and will be provided to you in English and Vietnamese.
  3. Report: Please report any information regarding the sale or distribution of "CAO BOI TRI CAY THAU DAU " to CLPPB. Your reports are vital in our efforts to prevent further harm to the public. CLPPB will provide updates as additional information and resources become available. Thank you.

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