Liquor Rusci, B.P.C. Solution of Birch Tar Oil.

Botanical name: 

Format explanation

Related entry: Birch Tar Oil

Birch Tar Oil 10.00 | 2 fl. ounces
Quillaia Bark, in No. 20 powder 10.00 | 2 ounces
Alcohol to 100.00 | to 20 fl. ounces

Moisten the quillaia bark with 5 (1 fluid ounce) of the alcohol and complete the percolation process, to produce 90 (18 fluid ounces) of the tincture; add the birch tar oil and allow to stand for two days, shaking occasionally, decant the supernatant liquid.

The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.