Pill Identification by Imprints: OS 213 Home Pill Identification by Imprints: OS 213 1 result HYDROMORPHONE HCL ER 16 MG TAB Side 1: OS 213 Color: Yellow Side 2: Shape: Round Other Popular Drug Imprint FS3 VIP 107 M F1 66 or 67 A 37 E21 I 53 44 548 G 0533 60 C41 677 ZE 72 AR 60 1052 3572 V E 655 SZ 659 135 N 82 R0.5 SL 456 ZA-50 224 RIFATER 292 134 770 par 211 R720 HP 145 M 1860 G188 H 54 343 32 T-E WPI 844 O-M AN 545