Pill Identification by Imprints: M 54 Home Pill Identification by Imprints: M 54 1 result METHYLPHENIDATE ER 54 MG TAB Side 1: M 54 Color: Red Side 2: Shape: Oblong Other Popular Drug Imprint 1 9 NTBC 20 mg C82 OP 697 M 407 1074 2.5/1000 CAP GG 264 V240 54 881 104 M 753 LEVAQUIN TL 122 G 304 FS1 CTI 116 861 T P PROCARDIA XL 30 ESL200 MYLAN 216 EFF CM1 692 EL601 CYP 197 V268 Zofran L141 MUTUAL 901 logo and 143 Z 4236 U S MP 657 S G K237 GG 168 C43 BARRIER