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 500/20 NU-IRON 150 0291 DISTA 3104 L58 TL 173 L 350 93 834 G-X-U b 701 2984 E300 A510 K 45 MOT 0632 75mg GX 623 275 MYLAN 167 242 2 E 103 P5 par 218 AMB 10 MP 446 RDY 343 XANAX Lilly 3229 WPI 2245 WATSON or WATSON 075 5mg N 135 E 19 XP GG 225 GG 64 TYLENOL 500 HOSPITAL 35 80 M 51 GIL 0.5 A-010 20