Caffeine for allergic rhinitis.
D002110:Caffeine / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006636:Histamine Release / Q000187:drug effects; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D002110:Caffeine