Cattle Gallstones 牛黄

choi

Three days ago Saturday (Jan 25, 2025) I published a posting titled "Physicists Find a Scientific Way to Cook an Italian Dish."
The takeaway message: A cook determines how much water in which to boil pasta. An experienced adjust the volume of water based on the brand of pasta he is FAMILIA with. These (volume and brand) are critical because the drained water is to be used to make sauce in cacio e pepe.  

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Samantha Pearson, Cattle Gallstones, Worth Twice as Much as Gold, Drive a Global Smuggling Frenzy. Wall Street Journal, Jan 22, 2025, at page A1.
https://www.msn.com/en-us/money/ ... -frenzy/ar-AA1xufzx

Note:
(a) "One of the most prized ingredients in traditional Chinese medicine [(TCM)], cattle gallstones [牛黄] have become so valuable * * * 'The rapid growth of the TCM industry over the last few decades has exacerbated the pressure on endangered wildlife in Asia and beyond,' said the London-based Environmental Investigation Agency pan NGO founded in 1984] * * * Once harvested, cattle gallstones are carefully cleaned and left to dry for weeks before being crushed down. In China, the powder is typically mixed with other ingredients from powdered buffalo horn to realgar, a reddish gemstone containing arsenic, and pressed into the so-called Angong pill.   'It costs about $200 for a couple of pills and it's something that a family would keep at home in their pill box for an emergency,' said Dr Donghai Wen, a China-born doctor at Massachusetts General Hospital and assistant 'professor at Harvard University Medical School who trained in traditional Chinese medicine early in his career. * * * an ischemic stroke, the most common type of stroke in which a clot cuts off blood flow to the brain ]the other type is hemorrhagic stroke, resulting from a burst vessel]
(i) 安宫牛黄丸
https://zh.wikipedia.org/zh-cn/安宫牛黄丸
(ii) Donghai Wen, MD[, PhD]. Assistant Professor of Medicine, Harvard Medical School, undated
https://connects.catalyst.harvar ... splay/Person/171238
(Education[:]
Guangzhou University of Chinese Medicine, Guangzhou, China [广州中医药大学 (1924- )]        MD        06/2006        Chinese Medicine
Fudan University, Shanghai, China                                                                                PhD        06/2011        Internal Medicine")

I fail to find his Chinese name.
(b) gallstone
https://en.wikipedia.org/wiki/Gallstone
(section 4 Pathophysiology, section 4.1 Composition)