Pill Identification by Imprints: WPI 3629 Home Pill Identification by Imprints: WPI 3629 1 result HYDROMORPHONE HCL ER 8 MG TAB Side 1: WPI 3629 Color: Reddish-Brown Side 2: Shape: Round Other Popular Drug Imprint M 47 M 1745 M D18 15/30 or P1 M 10 MACRODANTIN 100 mg D 84 128 159 GG 258 WPI 844 VASO 5 AC356 HP 11 I82 SZ 438 Z12 WPI 3699 L20 V 2 S 12 A66 DX41 RPR 202 par 289 N010 WATSON 795 018 FLZ 50 L374 C4 M 1850 logo and KT I 03 H 104 CP TL 122 MCR 104 266/18 logo and 4960