The present invention relates to multiple-unit tablet dosage forms which are composed of small beads. Each small bead further composed of many layers. Some layer contains drug substance； others are rate controlling polymer. Multiple-unit tablet dosage form offered more advantages over monolithic dosage form because they can provide controlled release and targeted release within the gastrointestinal tract. The advantages of controlled release multiple-unit tablet formulations are well known and include the ability to maintain a desired blood concentration level for a prolonged period of time while increasing patient compliance by reducing the frequency of dose administration necessary to achieve the same. The resulting multiple-unit tablet dosage forms of aceclofenac were satisfactory fabricated.
