The present invention relates to the use in therapy of 6-((4-(2,3-dimethylphenoxy)piperidin-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione or a pharmaceutically acceptable salt thereof, to pharmaceutically acceptable salts of 6-((4-(2,3-dimethylphenoxy)piperidin-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione and to pharmaceutical formulations comprising 6-((4-(2,3-dimethylphenoxy)piperidin-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione or a pharmaceutically acceptable salt thereof.