287718 MS metoprolol succinate 17 1238960 MET metoprolol succinate 6 1274154 MPS metoprolol succinate 2 3035092 Met-S metoprolol succinate 2 1237994 MES metoprolol succinate 1 2668889 MET-ER metoprolol succinate 1 3034933 METO metoprolol succinate 1 1271871 MPL metoprolol succinate 1 1291102 MTR metoprolol succinate 1 1292341 MTS metoprolol succinate 1