| abstract |
The present invention relates to crystalline particles wherein each particle comprises a combination of a pharmaceutically acceptable salt of 8-hydroxy-5-[(1R)-1-hydroxy-2-[[(1R)-2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]-2(1H)-quinolinone (carmoterol), and a corticosteroid in a pre-determined and constant ratio. The invention also relates to a method for preparing them and to inhalation compositions thereof. |