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 54 150 93 42 logo and 477 SV 572 R179 111 G231 A50 340 GG 78 SZ 214 logo and 182 OCUVITE 93 7386 N A 44 628 2102 E41 E27 or E24 142 ZC 16 MYLAN 1610 M2A4 57344 159 RF 28 54 710 logo and 040 0.5 mg V26 COUMADIN 6 516 283 J 247 667 mg M D36 logo and NS B404 1071 5/1000 MS B 260