Pill Identification by Imprints: M 1820 Home Pill Identification by Imprints: M 1820 1 result METHYLPHENIDATE ER 20 MG CAP Side 1: M 1820 Color: Medium Blue Side 2: 20 mg Shape: Oblong Other Popular Drug Imprint 97 NP CLOZARIL M P4 M1 UL250 319 SANKYO 54 795 200 mg R189 1068 logo and 477 EP 136 E 136 LAMICTAL XR 200 H 2 par 084 HP51 NOVEN CL9 ZC55 1000 GILEAD 10 M F1 NC 200 D 32 E 54 ZYRTEC D E 70 557 TAM logo and 665 P 5 L-FLAV EP 321 TARO BP 608 NQ 93 7371