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• n  sulfa drug derived from pyridine and sulfanilamide

• Although sulfanilamide and sulfapyridine work wonders in the treatment of pneumonia, they sometimes bring on a train of after-effects both irritating and dangerous, including .
• To combat the Staphylococcus sulfanilamide and its offspring sulfapyridine were tried, but with few encouraging results.
• Bacteriologist Pittman was not completely satisfied, urged that sulfapyridine be given "further trial.