II. INTERNATIONAL STANDARDS. 
1. INTERNATIONAL CONFERENCE FOR THE UNIFICATION OF 
PHARMACOPOEIA! FORMULAE FOR POTENT MEDICAMENTS 
(BRUSSELS CONFERENCE). 
1. PROJECT FOR AN AGREEMENT RESPECTING THE UNIFICATION OF THE 
PHARMACOPCEIAL FORMULAS FOR POTENT DRUGS. 
The Governments of Great Britain, Germany, Austria and Hun- 
gary, Belgium, Bulgaria, Denmark, Spain, the United States of 
America, France, Greece, Italy, the Grand Duchy of Luxemburg, 
Norway, the Netherlands, Portugal, Russia, Servia, Sweden, and 
Switzerland, having recognized the utility of concluding an agree- 
ment with a view to the unification of the pharmacopoeial formulas 
for potent drugs on the basis indicated in the final protocol signed 
on the 20th September, 1902, as a result of the conference held at 
Brussels, the undersigned, duly authorized thereto, have agreed upon 
the following stipulations: 
Article 1. — The medicinal substances inscribed in the table given below shall 
be designated, in the pharmacopoeia published by each of the contracting Gov- 
ernments, by the Latin names employed in this table, and shall conform with 
the directions indicated in the column opposite. 
Latin names and synonyms of drugs and prepa- Pharmaceutical directions. 
Aconitum Napellus. L 
Aconiti tuber seu Tuber Aconiti. 
Aconiti tinctura seu Tinctura Aconiti. 
Atropa Belladonna. L 
Belladonnse folium seu Folium Belladonnse 
Belladonna tinctura seu Tinctura Belladonna 
Belladonna extractum seu Extractum Belladonna. 
Colchicum autumnale. L 
Colchici semen seu Semen Colchici 
Colchici tinctura seu Tinctura Colchici 
Digitalis purpurea. L 
Use only the tuber of the current year, dried. Pow- 
dered drug to be used entire, without separation of 
residue. 
Prepare by percolation with alcohol (70 per cent, by 
volume). Tincture to be standardized to 0.05 per 
cent of total alkaloids. 
Use only the leaf, dried. Powdered drug to be used 
entire. 
Strength 10 per cent. Prepare by percolation with 
alcohol (70 per cent). 
Prepare a solid extract (containing about 10 per cent 
of water) by means of alcohol (70 per cent). 
I Use only the seed. 
j Strength 10 per cent. Prepare by percolation with 
alcohol (70 per cent) . 
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