Pill Identification by Imprints: RX 537 Home Pill Identification by Imprints: RX 537 5 results LISINOPRIL-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: RX 537 Color: Yellow Side 2: Shape: Round LISINOPRIL-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: RX 537 Color: Yellow Side 2: Shape: Round LISINOPRIL-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: RX 537 Color: Yellow Side 2: Shape: Round LISINOPRIL-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: RX 537 Color: Yellow Side 2: Shape: Round LISINOPRIL-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB Side 1: RX 537 Color: Yellow Side 2: Shape: Round Other Popular Drug Imprint PHARMACIA & UPJOHN C5 or C2 DG1 M 127 N040 M 15 HP 61 S551 1249 I 16 Zofran 745 O 250 or O-M D I I 5 mg 714 G 32 H7.5 325 ML 23 G 422 HP 70 T200 H5/325 HPC 200 G 220 T 109 LOTENSIN HCT VH2 L 350 R136 PAD 0115 ANI 511 E99 W 902 b 96 C 23 NV3 20 Y 43 US 10