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 44-503 FHI U35 MYLAN 6726 31 62 CB NQ V403 PH 033 MYSOLINE 250 277 CL 39 300 P 4 FEL 600 58 82 L340 W 785 E 140 KPI 241 RDY 344 M 2 Neurontin 400 mg 6 0 21 7 19 BUMEX 1 IP 219 BI 4 T504 N 4 M B3 VP060 AV1 or AV2 MP 81 LL 253 SEA RLE 10 21 L 178 logo and ZF Q21 378