This invention relates to compounds having pharmacological activity, to compositions containing these compounds, and to a method of treatment employing the compounds and compositions. More particularly, this invention concerns certain indole derivatives and their salts and solvates. These compounds have H3 histamine receptor antagonist activity. This invention also relates to pharmaceutical compositions containing these compounds and to a method of treating disorders in which histamine H3 receptor blockade is beneficial.本發明係關於具有藥理學活性之化合物、含有此等化合物之組合物,及一種採用該等化合物及組合物進行治療之方法。更具體而言,本發明係關於特定吲哚衍生物及其鹽類及溶劑化物。此等化合物具有H3組織胺受體拮抗劑活性。本發明亦係關於含有此等化合物之醫藥組合物及一種治療可受益於組織胺H3受體阻斷之病症的方法。