title: Allergic rhinitis and its control by antihistamines: clinical trial of Tavegyl (meclastine).
mesh_terms: D002986:Clinical Trials as Topic; D006634:Histamine H1 Antagonists / Q000008:administration & dosage / Q000627:therapeutic use*; D011759:Pyrrolidines / Q000627:therapeutic use*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D006634:Histamine H1 Antagonists; D011759:Pyrrolidines