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 AZ 011 20 MG Sandoz 663 LILLY 4116 L409 2773 CCC 500 U 135 b 12 93 3002 VP 120 M RE TV A18 NP 14 MP 50 L193 BAYER BAYER TV 1 E 1 150 3138 ucb 1000 Lilly 3230 TL 171 G 24 PV40 B419 PBT E 707 N040 A3 NOVEN U7 93 D SZ 467 W 3 PH LDT M 177 GX EJ7