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 M 42 A X 8 AN 475 C17 LK100 GG 125 G221 BL 01 M CL3 LODOSYN logo and 20 PY 1 L272 TI AP4 C325 1000 RX121 Watson 629 EVOXAC E 0932 logo and 2918 SLOW- MAG MYLAN DA 10 G 70 M RN2 M 313 319 MO1 barr 250 mg FENTANYL 400 WATSON 780 V 50 FC 119 MRK CMZ 200 D05 OR E 1217 ARI 20 1427