Synergism between trimethoprim and sulfamethoxazole.
D004357:Drug Synergism; D004926:Escherichia coli / Q000187:drug effects*; D005493:Folic Acid Antagonists; D013420:Sulfamethoxazole / Q000494:pharmacology*; D014295:Trimethoprim / Q000494:pharmacology*
D005493:Folic Acid Antagonists; D014295:Trimethoprim; D013420:Sulfamethoxazole