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 CH75 AR 788 L 22 200 mg 468 L437 I54 300 ER 2 1/2 19 logo YC MYLAN 6900 NxFE WW 948 54 769 A027 TL 177 022 PhosLo K106 GG 622 F11 S 111 WPI 3332 logo 150 logo and 76 logo and 3092 GG 257 B 303 I43 LCI PAXIL 273 U36 93 54 PLIVA 334 MYLAN 145 IP 218 GG D8 E 511