Pill Identification by Imprints: CM4 Home Pill Identification by Imprints: CM4 1 result INVOKAMET XR 150-1,000 MG TAB Side 1: CM4 Color: Reddish-Brown Side 2: Shape: Oblong Other Popular Drug Imprint 533 B75 X TUMS SD logo and 87 MRK LCI 1356 A2 ZANTAC 300 MP 475 RIS 104 54 518 T/255 TL388 SEROQUEL 25 CYP C 285 RI18 31 90 H5 HP 70 47 RPC 053 logo and 48 C P DYAZIDE SB CL 57 WATSON 583 083 M1 J62 ESL200 M E18 IP 272 740 CL 1 54 111 54 956 U7 or U13 93 64