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 M. Amphet Salts 177 MP 511 nitroglycerin 0.2 mg/hr PH 063 N 20 M 613 NORVASC 5 OP VRX 205 NP 12 S406 MPC 500 2106 54 899 CLEOCIN 75 mg E42 E 277 A24 629 GG 166 M525 U26 WELLBUTRIN 100 IG271 321 UL500 W-7 W 905 M2A4 57344 R3 CA 2 1 LCI 1330 P 241 A Z A22 K3 NORPRAMIN 75 ALG 265