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 W 1034 117 G 8 105 E 223 1 KC 8 SZ 439 PA2 POLY 212 286 052 GG 341 FAM250 MYLAN TE 6 Y 16 M 318 D 5 NT 16 MYLAN 7160 logo and F-C TV 2 CTI 142 IP 77 APO 020 Lilly 3270 852 207 FL 145 B 252 RX693 U-S 93 42 SANDOZ 620 I 2 GX CM3 5136 D3 or PC U 128 CP114