Pill Identification by Imprints: S551 Home Pill Identification by Imprints: S551 2 results OLMESARTAN-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: S551 Color: Pink Side 2: Shape: Round OLMESARTAN-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: S551 Color: Pink Side 2: Shape: Round Other Popular Drug Imprint MYSOLINE 50 L194 TI 100 TV 2 1/2 LCE 125 1034 DYAZIDE SB 93 756 5 VALIUM 226 or 291 AN 475 E51 GM 2 223 A IK RD74 E 801 832 BM05 NEORAL 100mg 499 logo and 9 logo and 11 U-S 1 V 5 BL 01 A 349 MEL 15 VIP 106 DAN 5535 L428 K 23 44 226 L158 West-ward 261 838 AA 72 MSD 275 AAT 101 GG 334 ZYBAN 150