fication Test, Apparatus 3— Individually test 1 tablet of the USP Chlorpheniramine Maleate Extended-Release Tablets RS according to the operating conditions specified. The apparatus is suitable if the results obtained are within the acceptable range stated in the certificate. РPerformance Verification Test, Apparatus 4—[e.] РPROCEDURE РApparatus 1 and Apparatus 2 РIMMEDIATE-RELEASE DOSAGE FORMS РPlace the stated volume of the Dissolution Medium (±1%) in the vessel of the specified apparatus given in the individual monograph, assemble the apparatus, equilibrate the Dissolution Medium to 37 ± 0.5, and remove the thermometer. Place 1 dosage unit in the apparatus, taking care to exclude air bubbles from the surface of the dosage unit, and immediately operate the apparatus at the specified rate