Pill Identification by Imprints: logo 631 Home Pill Identification by Imprints: logo 631 1 result ISOSORBIDE MONONIT 10 MG TAB Side 1: logo 631 Color: Blue Side 2: Shape: Round Other Popular Drug Imprint DROXIA 6335 logo and DS 100 44375 UCB 581 N111 3205 G80 1158 RX 526 G-DS-50 44 334 691 CL91 37 97 E 123 I G 472 CZ 100 C C L490 ZD 16 GG 21 HP 44 U-S 250 KX52 Z 300 0374 IP 46 44 447 8I SZ 198 1138 L021 Fentanyl 50 mcg/hr E 749 314 GLD USL M 619 877