Trimethoprim.
D000890:Anti-Infective Agents; D004357:Drug Synergism; D005493:Folic Acid Antagonists / Q000627:therapeutic use*; D006801:Humans; D011743:Pyrimidines / Q000627:therapeutic use*; D013420:Sulfamethoxazole / Q000627:therapeutic use; D013444:Sulfisoxazole / Q000627:therapeutic use
D000890:Anti-Infective Agents; D005493:Folic Acid Antagonists; D011743:Pyrimidines; D013444:Sulfisoxazole; D013420:Sulfamethoxazole