In obstinate cases 2 drams ergot of rye or of catechu may be added.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Kino is at present used but little in therapeutics and its action is analogous to that of tannin and catechu.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
The pigment is mutton-fat, blackened, according to Tchebu Lama, with catechu and other ingredients; but I believe more frequently by the dirt of the face itself.
"Himalayan Journals V2."
J. D. Hooker