Pill Identification by Imprints: M 1850 Home Pill Identification by Imprints: M 1850 1 result METHYLPHENIDATE ER 50 MG CAP Side 1: M 1850 Color: White Side 2: 50 mg Shape: Oblong Other Popular Drug Imprint G 0522 247 LCI 1383 MYLAN 5050 155 0 8 DAN 100 A263 30 mg ML 4 637 ULTRAM West-ward 261 W 783 5266 CN 1 MPC 500 Lilly 2 C371 R 7.5 RX 901 logo and 833 G 55 I90 GG 507 DARAPRIM A3A cor 126 L015 RI90 H 3 ZC 78 G-X-U TYLENOL PM 54 866 M GP10 M2A3 57344 L161 44-485 logo and 64 VRX 205 T4