Pill Identification by Imprints: CL28 Home Pill Identification by Imprints: CL28 2 results MEMANTINE HCL 10 MG TABLET Side 1: CL28 Color: Gray Side 2: Shape: Oblong MEMANTINE HCL 10 MG TABLET Side 1: CL28 Color: Gray Side 2: Shape: Oblong Other Popular Drug Imprint 511 C54 VP060 15/30 or P1 A 0.5 barr 15 mg D 35 B 153 PAD 37 98 WW 948 RX 554 3 M 745 PAR 869 44 531 93 ZESTRIL 20 R0.5 IMITREX 100 R180 WPI 2245 DILANTIN 130 54 757 R 158 or 54 312 or WC 731 T539 N 100 GS 93 28 04 M-541 M R7 logo and 667 100 ER 100 mg OT 1 1 A33 ZVR 100 RTG-400