Emplastrum Salicylicum Compositum, B.P.C. Compound Salicylic Plaster.

Format explanation.
Related entries: Salicylic acid - Indian Hemp
Synonyms.—Salicylic Acid and Indian Hemp Plaster; Corn Plaster.

Salicylic Acid, in fine powder 20.00 | 3 ounces
Extract of Indian Hemp 10.00 | 1 ½ ounces
Rubber Adhesive Plaster 70.00 | 10 ½ ounces

Dry the extract of Indian hemp on a water-bath, mix it intimately with the rubber adhesive plaster, previously melted on a water-bath, then add the salicylic acid and mix thoroughly.

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