The invention provides extended release pharmaceutical compositions comprising metoprolol or a pharmaceutically acceptable salt thereof such as metoprolol succinate wherein the composition is in the form of multiple unit extended release pellets that are compressed into tablets. The extended release pellets of the invention comprise of water soluble or water swellable inert core, the drug layer and extended release polymer layer comprising atleast one water insoluble polymer. These extended release pellets are compressed into tablets such that dissolution profile of the extended release pellets remains substantially unaffected.
