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 ML52 logo and 22 SZ 390 137 DROXIA 6336 MYLAN MT 7 IP 178 Lofibra 200 mg 267/25 ZA-46 K105 CL90 TCL 016 HALCION 0.25 DS or DP KC E19 020 G5 L100 FI WATSON 411 CLL CL 024 029 0891 R-263 54 323 L417 GS JT TL710 LP79 C7 OP 703 U3 I20 logo and 150 A028 EC-NAPROSYN 25 41