| abstract |
A controlled release composition for oralnadministration, which comprises a physiologically activensubstance which is a compound represented by the formula:n nwherein n is an integer of 1 to 3, and Ar is an aromaticnring which may be substituted, nor a salt thereof, and a hydrophilic polymer, or ancontrolled release composition for oral administration,nwherein a core containing the physiologically activensubstance is coated with a coating layer containing anpolymer, is provided. |