The present invention relates to a solid oral dosage form comprising a therapeutically effective amount of aliskiren or a pharmaceutically acceptable salt thereof, a therapeutically effective amount of HCTZ and a hydrophilic filler selected from the group a carbohydrate or combinations thereof, e.g. sugars, sugar alcohols and starches or combinations of these.本發明係關於一種固體口服劑型,其包含治療有效量之阿利吉侖(aliskiren)或其醫藥上可接受之鹽、治療有效量之HCTZ、及選自碳水化合物或其組合(例如糖、糖醇及澱粉或該等之組合)之群的親水性填充劑。