Pill Identification by Imprints: HP 531 Home Pill Identification by Imprints: HP 531 1 result CALCIUM ACETATE 667 MG CAPSULE Side 1: HP 531 Color: Blue Side 2: HP 531 Shape: Oblong Other Popular Drug Imprint NC 667 E0 WPI 2245 R50 logo and 1112 Endo 602 ZE 50 MYLAN A3 538 975 Ziks631 CTI 224 2106 EP 140 NL 710 44 386 ZC44 44-338 E 74 551 G 55 EP 117 logo and 4357 L180 DHA 4576 PH 32 HYD 30 78 G 021 ML 60 PreQue SZ Z4 CRESTOR 20 b 701 logo and 667 M 424 EL600 G352 EM1