AJTMH Transactions of the Royal Society of Tropical Medicine and Hygiene
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Am. J. Trop. Med. Hyg., 1(4), 1952, pp. 593-597
Copyright © 1952 by The American Society of Tropical Medicine and Hygiene

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Diasone, Avlosulfon and Sulphetrone as Therapeutic Agents in Experimental Toxoplasmosis*

Joy Barnes Cross1
University of Texas, Department of Zoology, Austin, and Department of Preventive Medicine, Medical Branch, Galveston

Diasone (0.5%) and Avlosulfon (0.1%), when administered in the diet, protect the majority of white mice from death in an otherwise rapidly fatal toxoplasmosis even when therapy is delayed by 1/3 of the survival time of the untreated animals. Sulphetrone used similarly at 1.5% is without effect and only slightly protective when used at 3.0%. None of the drug controls showed any toxic reactions at these dosages. The carrier condition seems to have been eliminated certainly in 7 and probably in an additional 3 out of the 11 cases investigated. Since our results surpass those previously reported for Diasone and for Avlo-sulfon, it is possible that the method of administration (intermittent dosage following continuous dosage) contributes to the increased effectiveness.


* Aided by a contract of the Office of Naval Research with the University of Texas.


1 For reprints address Dr. J. V. Irons, State Health Laboratory, Austin, Texas.







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Copyright © 1952 by the American Society of Tropical Medicine and Hygiene.