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 1249 N20 M 313 NICHE S 12 SEROQUEL G 4960 WATSON 3211 I 06 593 E 101 T 16 GG 258 F200 0 8 T 278 605 MUTUAL 901 CLEOCIN 300 mg P50 SC 800 IP 203 H 3 logo and 201 ACCOLATE 10 AB1 PD 530 1 85 logo and 524 ZBO 194 WP 5901 1344 M 545 E 774 021 L009 CL 32 logo and 121 TCL 086