Pill Identification by Imprints: WPI 3631 Home Pill Identification by Imprints: WPI 3631 1 result HYDROMORPHONE HCL ER 32 MG TAB Side 1: WPI 3631 Color: White Side 2: Shape: Round Other Popular Drug Imprint S193 URS790 NL C SA 100 M525 54 m 156 UPSHER-SMITH 0228 R-264 AS+ SC West- ward logo and 29 TO 60 192 XELODA VS 160 M 412 P61 Advil A/S E3 or E6 54 795 LTG 2 MP 40 T31 IDT M15 TEVA 7592 R789 191 Tiazac 120 2106 M 542 GC Lilly logo and 2909 G 32 GG 606 E300 APTALIS 15 1 8 07