Pill Identification by Imprints: M 1840 Home Pill Identification by Imprints: M 1840 1 result METHYLPHENIDATE ER 40 MG CAP Side 1: M 1840 Color: Yellow Side 2: 40 mg Shape: Oblong Other Popular Drug Imprint ibr 140mg West-ward 292 GG 63 S253 54 092 AK B 293 NORVASC 5 PA140 LAMICTAL XR 300 G 372 2 15/850 V 6 79 M 445 OV 111 CPC 1325 logo and 831 VP and logo CPC 77 ED 400 1344 L113 e5 111 M77 G 4900 GGN2 AMB 10 SL 100 A226 logo and 325 343 TA3M OS 302 M208 970 DXL N 08 EPITOL E 124