Peripheral Neuritis Caused by Prolonged Use of Dinitrophenol

The number of cases of poisoning by alphadinitrophenol has greatly increased in the past year. This is due to the fact that the drug is now frequently used either alone or as a constituent of certain preparations for reducing weight. Notwithstanding the considerable number of cases of poisoning that have been reported, there still remain many points for consideration in the study of this drug. For this reason it seems justifiable to report instances of poisoning in the hope that, from a larger mass of more diversified observations, facts of direct importance regarding these mooted points may be obtained. This report deals primarily with late or delayed poisoning by dinitrophenol. The cases here detailed are believed not to be unusual but to present a condition not hitherto described, so far as the relation of the cause and its effects are concerned. As has been stressed by Quick,¹too little