from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of, relating to, or containing sulfanilamide or any sulfa drug: sulfa pills; a sulfa powder.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or containing sulfanilamide.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA


Short for sulfa(nilamide).
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • It can be added that trimethoprim-sulfa is used in the treatment of Pneumocystis carinii, a relatively common complication to AIDS.

    Physiology or Medicine 1988 - Press Release

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    More on the Obama sellout (Jack Bog's Blog)

  • He caught pneumonia and tried to take some kind of sulfa drug that went against his heart.


  • The subsequent development of sulfa drugs was a milestone in biomedical sciences and a great deal of research followed as scientists throughout the world searched for more effective chemotherapies for bacterial infections.

    Richard Kuhn and the Chemical Institute: Double Bonds and Biological Mechanisms

  • Kuhn surmised that the sulfa drugs must be competitors for the same biological receptors used by natural growth factors.

    Richard Kuhn and the Chemical Institute: Double Bonds and Biological Mechanisms

  • He knew that one of the problems with early sulfa drugs was that they required massive doses to be effective against bacteria, often with strong side-effects.

    Richard Kuhn and the Chemical Institute: Double Bonds and Biological Mechanisms

  • He was convinced that a normal cell's chemical affinity for the natural growth factor was far higher than that of the sulfa drugs.

    Richard Kuhn and the Chemical Institute: Double Bonds and Biological Mechanisms

  • However, antibiotics most likely to cause severe allergic reactions (e.g., penicillins, cephalosporins and sulfa drugs) are not contained in vaccines.


  • There were now several classes of antibiotics, from the penicillin derivatives to the sulfa drugs, the tetracyclines, erythromycin, and the antituberculosis drug streptomycin.


  • The amount of community-strain staph that possessed inducible clindamycin resistance was still low, however, and there were still plenty of other drug options for outpatient treatment: the tetracyclines; the fluoroquinolones; the sulfa drugs; and linezolid or Zyvox, a brand-new and therefore much more expensive drug that could also be taken orally.



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