Tinctura Quillaiae. Br. Tincture of Quillaia.
Related entries: Quillaja
Teinture (alcoole) d'Ecorce de Quillaya, Fr.; Seifenrindentinktur, G.
Tincture of quillaja was deleted from the U, S. P. IX, but is now official in the N. F. IV..
"Quillaia Bark, in No. 20 powder, 50 grammes; Alcohol (60 per cent.), sufficient to produce 1000 millilitres. Moisten the powder with twenty-five millilitres of the Alcohol, and complete the percolation process." Br.
This tincture is almost exclusively used as an emulsifying agent. Its medicinal activity, however, limits its use. (See Quillaja) The British tincture is only one-fourth the strength of the preparation.
Dose, from one-half to one fluidrachm (1.8-3.75 mils).