Abstract
Summary
The results reported are similar to those demonstrated for papaverine: the effect of both codeine and morphine being enhanced by sulfapyridine. The increased activity of the drugs after sulfapyridine becomes evident not only in the prolongation of their action but also in the intensity of their effects and in the increase of their toxicity.
Appreciation is expressed to Merck and Co. for supplying sulfa-pyridine and to Miss Bessie Zirin for her technical assistance.
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