A modified release preparation having one or more coated core elements, each
core
element including an active ingredient and having a modified release coating, wherein
a stabilising coat is provided between each core element and its modified release
coating so that, upon in vitro dissolution testing, the amount of active ingredient
released at any time on a post-storage dissolution profile is within 40 percentage
points of the amount of active ingredient released at any time on a pre-storage
dissolution profile.