This section is from the book "A Treatise On The Materia Medica And Therapeutics Of The Skin", by Henry G. Piffard. Also available from Amazon: A Treatise On The Materia Medica And Therapeutics Of The Skin.
C. Purpura hemorrhagica, 10, 1: 230.
The effects of gallic are quite similar to those of tannic acid. As an astringent to weeping surfaces it may be mixed with lyco-podium or starch.
The only officinal preparation is the Glyceritum Acidi Gallici.
 
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