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 1382 H22 M 81 alza 27 54 357 RC25 312 IP 464 V.5 U-S MYLAN 1400 A80 54 553 2772 10 00 44 184 CP 332 ADIPEX-P ML 041 Integra Plus GG 550 ACTIQ 1600 G46 Alora 0.1mg/day estradiol M V5 G230 FENTANYL 100mcg/hr HH NT 50 IX D 92 371 TEVA 7588 R 1 B4 C P 5 R575 M D6 Butrans 10mcg/hour FL 145