Abstract
Standard and commercial preparations of Digitalis were biologically assayed in pigeons according to the U.S.P. XV method. Pentobarbital was used instead of ether anesthesia. Either the reference standard or the unknown were diluted in such a way that the pigeons would be killed around the 14 th. injection in the alar vein. Thirty eight samples of commercial products collected from local drugstores by State authorities were examined; ten of these were found to be less and 2 to be more potent than the labelled concentration.
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Copyright (c) 1959 Instituto Adolfo Lutz Journal