Is it farther or further?
pharmacopoeia phar·ma·co·poe·ia or phar·ma·co·pe·ia (fär'mə-kə-pē'ə)
A book containing an official list of medicinal drugs together with articles on their preparation and use.
A collection or stock of drugs.
book published by a government, or otherwise under official sanction, to provide standards of strength and purity for therapeutic drugs. The primary function of a pharmacopoeia is to describe the formulation of each drug on the selected list. The provisions of the pharmacopoeia are binding upon all who produce drugs and who dispense them.