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Omitted from the Materia Medica chapter are: Medicaments that
have become obsolete, or that are too rarely used to be of general
interest; and such new remedies as are not yet safely accredited on
reliable authority; also those galenic preparations (syrups, extracts,
pills, essences, elixirs, wines, emulsions, etc.) which are not
standardized according to the U.S.