A pharmaceutical composition comprising: (i) 1-50% by weight of a hydrochloric acid salt of Compound 1: (ii) at least 49.9% by weight of an inert solid diluent selected from cellulose powdered, silicified microcrystalline cellulose acetate, compressible sugar, confectioner's sugar, corn starch and pregelatinized starch, dextrates, dextrin, dextrose, erythritol, ethylcellulose, fructose, fumaric acid, glyceryl palmitostearate, inhalation lactose, isomalt, kaolin, lactitol, lactose, corn starch, microcrystalline cellulose, maltodextrin, maltose, mannitol, medium-chain triglycerides, polydextrose, polymethacrylates, simethicone, sorbitol, pregelatinized starch, sterilizable maize, sucrose, sugar spheres, sulfobutylether β-cyclodextrin, talc, tragacanth, trehalose, and xylitol; (iii) 0.1-5% by weight of a non-ionic lubricant selected from canola oil, hydrogenated castor oil, cottonseed oil, glyceryl behenate, glyceryl monostearate, glyceryl palmitostearate, medium-chain triglycerides, mineral oil, light mineral oil, octyldodecanol, poloxamer, polyethylene glycol, polyoxyethylene stearates, polyvinyl alcohol, starch, and hydrogenated vegetable oil, (iv) 0.1 to 5% by weight of a non-ionic disintegrant selected from alginic acid, powdered cellulose, chitosan, colloidal silicon dioxide, corn starch and pregelatinized starch, crospovidone, glycine, guar gum, low-substituted hydroxypropyl cellulose, methylcellulose, microcrystalline cellulose, and povidone, and (v) 0.1 to 0.5% by weight of a glidant selected from powdered cellulose, colloidal silicon dioxide, hydrophobic colloidal silica, silicon dioxide, and talc. (i) 1-50% by weight of a hydrochloric acid salt of Compound 1: (ii) at least 49.9% by weight of an inert solid diluent selected from cellulose powdered, silicified microcrystalline cellulose acetate, compressible sugar, confectioner's sugar, corn starch and pregelatinized starch, dextrates, dextrin, dextrose, erythritol, ethylcellulose, fructose, fumaric acid, glyceryl palmitostearate, inhalation lactose, isomalt, kaolin, lactitol, lactose, corn starch, microcrystalline cellulose, maltodextrin, maltose, mannitol, medium-chain triglycerides, polydextrose, polymethacrylates, simethicone, sorbitol, pregelatinized starch, sterilizable maize, sucrose, sugar spheres, sulfobutylether β-cyclodextrin, talc, tragacanth, trehalose, and xylitol; (iii) 0.1-5% by weight of a non-ionic lubricant selected from canola oil, hydrogenated castor oil, cottonseed oil, glyceryl behenate, glyceryl monostearate, glyceryl palmitostearate, medium-chain triglycerides, mineral oil, light mineral oil, octyldodecanol, poloxamer, polyethylene glycol, polyoxyethylene stearates, polyvinyl alcohol, starch, and hydrogenated vegetable oil, (iv) 0.1 to 5% by weight of a non-ionic disintegrant selected from alginic acid, powdered cellulose, chitosan, colloidal silicon dioxide, corn starch and pregelatinized starch, crospovidone, glycine, guar gum, low-substituted hydroxypropyl cellulose, methylcellulose, microcrystalline cellulose, and povidone, and (v) 0.1 to 0.5% by weight of a glidant selected from powdered cellulose, colloidal silicon dioxide, hydrophobic colloidal silica, silicon dioxide, and talc.