The present invention provides an osmotic device containing controlled
release pseudoephedrine in the core in combination with a rapid release
H1 antagonist in an external coat. A wide range of H1 antagonist
antihistamines, especially fexofenadine, can be used in this device.
Particular embodiments of the invention provide osmotic devices having
predetermined release profiles. One embodiment of the osmotic device
includes an external coat that has been spray coated rather compression
coated onto the device. The device with spray coated external core is
smaller and easier to swallow than the similar device having a
compression coated external coat. The device is useful for the treatment
of respiratory congestion related disorders and allergy related
disorders. The present devices provide PS and an H1 antagonist according
to specific release profiles in combination with specific formulations.