Abstract
Summary
The unpreserved, refrigerated crude latex was consistently the most efficient parasiticide tested, the preserved latex somewhat less effective. A 10% solution of the freshly opened crystoid compared favorably with the refrigerated latex but exposure to air rapidly diminished its potency. The amorphous ficin, while relatively stable, proved to be only about half as efficient as the fresh crystoid. The most specific action of these products occurred on whipworms, provided the large bowel was previously free of feces. The effect on hookworms was almost uniformly less satisfactory. Considerable amebostatic and, at times, amebicidal action was demonstrated.
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