Pill Identification by Imprints: M 4 Home Pill Identification by Imprints: M 4 4 results METOPROLOL SUCC ER 200 MG TAB Side 1: M 4 Color: White Side 2: Shape: Oval METOPROLOL SUCC ER 200 MG TAB Side 1: M 4 Color: White Side 2: Shape: Oval METOPROLOL SUCC ER 200 MG TAB Side 1: M 4 Color: White Side 2: Shape: Oval METOPROLOL SUCC ER 200 MG TAB Side 1: M 4 Color: White Side 2: Shape: Oval Other Popular Drug Imprint G 0522 E 130 93 900 A96 MP 84 MYLAN 5340 A 153 MSD 740 ANAFRANIL 75 mg CT 1 CP 403 logo and Pamelor 25 mg A 151 L898 PD 223 NPX West-ward 769 V250 CL 6 ASL 8 07 A 117 b 775 334 243 GAS-X ES 432 A87 CL28 923 IL 3581 394 C 24 M 725 B 586 or B 587 logo and 20 IMITREX M Z2 19 MYLAN 5150