Tinctura Guaiaci. U. S. Tincture of Guaiac. Tr. Guaiac. Tinctura Guaiaci Ammoniata. Ammoniated Tincture of Guaiac.
Related entries: Guaiac
Tinctura Guajaci; Teinture (alcoole) de Resine de Gayac, Fr.; Guajaktinktur, G.
"Guaiac, in No. 40 powder, two hundred grammes [or 7 ounces av., 24 grains], to make one thousand mils [or 33 fluidounces, 6 ½ fluidrachms]. Prepare a Tincture by Type Process M, using alcohol as the solvent." U. S.
Although this tincture can be prepared by percolation if care and skill are used, maceration is doubtless preferable.
This tincture is given in chronic rheumatism and gout, in the dose of from one to three fluidrachms three or four times a day. As it is precipitated by water, it is most conveniently administered in mucilage, sweetened water, or milk, by which the separated guaiac is held in temporary suspension, although it is almost impossible, without actual emulsification, to prevent the resinous material from separating and forming a coating on the inner surface of the bottle. Schar recommends tincture of guaiac as a reagent to detect the presence of ozonizing bodies. (Ph. Rund., 1894, 254.)
Dose, one fluidrachm (3.75 mils) three times a day.
Off. Prep.—Mistura Guaiaci, N. F.
Tinctura Guaiaci Ammoniata. U. S., Br.
Ammoniated Tincture of Guaiac. Tr. Guaiac. Ammon.
Ammoniated Tincture of Guaiacum; Tinctura Guaiaci Composita; Teinture (alcoole) de Gayac ammomacale, Fr.; Ammoniakalische Guajaktinktur, G.
"Guaiac, in No. 40 powder, two hundred grammes [or 7 ounces av., 24 grains], to make one thousand mils [or 33 fluidounces, 6 ½ fluidrachms]. Prepare a Tincture by Type Process M, using aromatic spirit of ammonia as the solvent." U. S.
"Guaiacum Resin, in powder, 200 grammes; Oil of Nutmeg, 3 millilitres; Oil of Lemon, 2 millilitres; Strong Solution of Ammonia, 75 millilitres; Alcohol (90 per cent.), sufficient to produce 1000 millilitres. Mix the Strong Solution of Ammonia with seven hundred millilitres of the Alcohol; add the Guaiacum Resin; set aside in a closed vessel for forty-eight hours, shaking frequently; filter; dissolve the Oil of Lemon and Oil of Nutmeg in the filtrate, and pass sufficient of the Alcohol through the filter to produce the required volume." Br.
The British Pharmacopoeia, 1898, improved the process for this tincture by abandoning the distilled aromatic spirit of ammonia used as a menstruum by the former British authority and substituting alcohol containing solution of ammonia and volatile oils, the proportion of oil of lemon having been reduced 60 per cent.
This tincture is celebrated in the treatment of chronic rheumatism, and is frequently also used in amenorrhea. It is more stimulating, and is probably more effectual, than the preceding on account of the presence of the alkali. It is precipitated by water, and should be administered emulsified with gum, so that the guaiac may be held in suspension.
Dose, from one to two fluidrachms (3.75-7.5 mils).
Off. Prep.—Gargarisma Guaiaci Composita, N. F.
The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.