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 SLC 221 F52 AZ ZC38 3126 A92 1097 CP 405 IP 465 L133 WW 455 715 NC 667 APO 034 A 75 G 021 C54 0500 LCI 1383 C C M 575 GG 930 477 logo 152 60 96 551 G821 ML 30 GG 339 ML 42 257 J 246 VH1 Syntho M RE4 E 1 SZ 439 25 MYLAN 551 61 61