abstract |
The present invention relates to a storage-stable pharmaceutical formulation comprising preferably two active compounds in a non-swellable diffusion matrix, whereby the compound is persistent and unaltered from the matrix and independent when multiple compounds are present. Released in a manner, the matrix is determined by ethyl cellulose and at least one fatty alcohol with respect to its intrinsic release characteristics. The invention also relates to a process for producing such a pharmaceutical formulation. |