Drugs and Gresham's law.
D000700:Analgesics / Q000627:therapeutic use*; D000777:Anesthetics; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001241:Aspirin / Q000627:therapeutic use; D006801:Humans
D000700:Analgesics; D000777:Anesthetics; D000900:Anti-Bacterial Agents; D001241:Aspirin