Eden Apothecary · Herb Profile
Picrorhiza kurroa
Also known as Katuka
Pronounced Kutki: KOOT-kee. Katuka: kah-TOO-kah. Picrorhiza kurroa: pik-roh-RYE-zuh KOO-roh-uh.
Cold, dry, and fiercely bitter: the Himalayan liver-scouring bitter that drains damp-heat, opens the flow of bile, and cools chronic and febrile heat.
Avoid. Reliable human safety data are lacking, and as a strong bitter with purgative action at higher doses it is advised against in pregnancy by modern references (Natural Medicines/NMCD, WebMD) and by classical TCM cautions for Hu Huang Lian. (Modern-sourced; insufficient data, avoid.)
Insufficient reliable data. Classical Ayurveda places Katuka among stanya-shodhana (milk-cleansing) herbs at low dose, but no modern lactation safety data exist and general references advise avoidance, so use only under qualified supervision, and preferably not in the early postpartum.
Traditionally used in small, carefully measured doses for pediatric fevers and indigestion, and in TCM (Hu Huang Lian) for childhood nutritional impairment with heat. However it is a potent bitter purgative with no modern pediatric safety studies, so give only under qualified supervision at low doses; avoid in infants and avoid self-administration. (Modern data insufficient.)
Intensely bitter and cold. Overdose or prolonged use can cause nausea, vomiting, loose or purgative stools, abdominal cramping, appetite loss, rash, and itching. Its cold dryness aggravates Vata and, over time, injures digestive fire (spleen and stomach yang). Because it stimulates immune activity, use caution in autoimmune conditions. It can lower blood glucose, and higher doses act as a cathartic.
Avoid in cold-deficient digestion (spleen and stomach yang deficiency) and chronic cold-type diarrhea, in dehydration, and in known hypersensitivity to the Plantaginaceae. Avoid in autoimmune disease (immunostimulant). Use cautiously and with monitoring in diabetes (additive hypoglycemia). Avoid in pregnancy; avoid or use only under supervision in lactation and in young children. Discontinue at least two weeks before surgery.
At-risk. Picrorhiza kurroa is IUCN-listed as endangered and is on CITES Appendix II, its wild Himalayan stands severely depleted by unregulated over-collection for the herb trade. Purchase only certified cultivated or verifiably sustainably propagated (farmed or tissue-cultured) rhizome, never wild-harvested, and consider substituting other bitters such as gentian or andrographis where clinically appropriate. (United Plant Savers is a North American registry and does not list this Asian species; the governing flags are IUCN, CITES Appendix II, and India's National Medicinal Plants Board.)
Not found in canonical biblical texts. Kutki is native to the alpine Himalaya (Kashmir and Ladakh east to Sikkim, and Nepal, roughly 3000 to 4800 m). It is a classical tikta (bitter) of Ayurveda named in the Charaka Samhita and Bhavaprakasha Nighantu, and, as Hu Huang Lian (from the closely related Picrorhiza scrophulariiflora), a long-standing bitter-cold herb of Chinese medicine.
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