Pill Identification by Imprints: 2531 Home Pill Identification by Imprints: 2531 3 results CLONAZEPAM 1 MG TABLET Side 1: 2531 Color: Light Blue Side 2: V Shape: Round CLONAZEPAM 1 MG TABLET Side 1: 2531 Color: Light Blue Side 2: V Shape: Round CLONAZEPAM 1 MG TABLET Side 1: 2531 Color: Light Blue Side 2: V Shape: Round Other Popular Drug Imprint ZC19 60 McNEIL Z 100 logo and TD logo and 257 n 352 TN 2 G8 K 100 319 G 531 S5 Fentanyl 75 mcg/hr A24 AP4 671 TCL 016 AB1 B 303 U S LANOXIN U3A 13 32 Macrobid CM4 4740 A 75 IP 174 ZD 16 100 ER MYLAN FE 134 logo and D2 1000M RESPA 177 258 R3 CL7 14 or 11 NORPRAMIN 75 POLY 730 MYLAN 183