The present invention relates to a compound which is 6-(3-cyclobutyl-2,3,4,5-tetrahydro-1 H -benzo[ d ]azepin-7-yloxy)- N -methyl-nicotinamide or a pharmaceutically acceptable salt thereof. This compound and its pharmaceutically acceptable salts have affinity for and are antagonists and/or inverse agonists of the histamine H3 receptor. The present invention also relates to processes for the preparation of this benzazepine derivative, to compositions containing it, and to the use of the benzazepine derivative in the treatment of neurological and psychiatric disorders.
