It has been used in traditional Chinese medicine for centuries where it is known as indigo naturalis or qing dai. Indigo is one of the oldest known natural dyes and is formed through fermentation of a variety of plants. indigotica can reach 50 to 140 cm in height, is bluish in color, and has yellow flowers gathered in inflorescences. indigotica is a biennial or perennial herb native to Ukraine that is widely distributed in Europe and is an invasive species in the United States. tinctorium, Strobilantes formosanus Moore, and I. Indigo naturalis or qing dai is a dried pigment obtained from the leaves and branches of indigo-producing plants such as B. The French and Guatemalan varieties differ in shape and size of the leaflets and pods. Simon 1984 Indigofera plants are perennial shrubs that reach 1 to 2 m in height.
suffruticosa Mill.) that are known for the natural blue colors obtained from their leaflets and branches. "Indigo" can refer to several species of Indigofera (eg, I. One case report describes development of pancreatitis with use of oral indigo naturalis another describes colitis and pulmonary hypertension with a supplement containing qing dai. Topical indigo naturalis may cause pruritus, rash, erythema, and nasopharyngitis. It may also cause colitis and pulmonary arterial hypertension. Indigo naturalis has been reported to cause mild liver dysfunction, abdominal pain, and headache. Information regarding safety and efficacy in pregnancy and lactation is lacking.
ContraindicationsĬontraindications have not been identified. DosingĬlinical evidence is lacking to provide dosing recommendations for indigo. However, clinical information is lacking to recommend use for any indication. It has been evaluated for treatment of psoriasis and other dermatological conditions as well as GI diseases such as ulcerative colitis. Indigo is mostly used as a source of dye. (Guatemala)Ĭommon Name(s): Common indigo, Indian indigo, Indigo naturalis, Qing dai (traditional Chinese medicine) (Japan), Polygonum tinctorium, Strobilanthes cusia (Neess) Kuntze, Indigofera suffruticosa Mill. subspecies villarsii, Persicaria tinctoria. (Bengal, Natal), Indigofera tinctoria (France)., Isatis indigotica Fortune ex Lindl., Isatis tinctoria L. (Thailand), Indigofera anil L., Indigofera arrecta. Scientific Name(s): Baphicacanthus cusia Brem.
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