The present invention relates to delayed-release methylphenidate tablets characterized in that they are provided with a release-controlling layer comprising a combination of an enteric polymer and a hydrophobic agent. These tablets have a release profile characterized in that the drug does not substantially start to release until approximately three hours after administration, completing it after approximately four hours after administration. This profile allows for the preparation of a modified-release dosage form of methylphenidate, combining the delayed-release tablet with an additional fraction of immediate-release methylphenidate. The dosage form thus obtained is suitable for treating attention deficit hyperactivity disorder (ADHD).
