Pill Identification by Imprints: 54 521 Home Pill Identification by Imprints: 54 521 1 result CILOSTAZOL 50 MG TABLET Side 1: 54 521 Color: White Side 2: Shape: Round Other Popular Drug Imprint Northera 5 6 P10 logo KC logo and ZA M 944 TL 127 GILEAD 4331 SANDOZ 573 NL4S N GG 124 AN899 15 UPSHER-SMITH 0229 M PD1 MYLAN 7155 logo and 3117 TV TV GG 623 2 1/2 RX692 Y03 RX 553 300 ER M205 1327 NCH 0810 BAYER BAYER U48 351 I 17 80 R 200 M378 4810 L068 X10 1325 ZC19 3.5