Pill Identification by Imprints: IL 3583 Home Pill Identification by Imprints: IL 3583 1 result THEOCHRON ER 200 MG TABLET Side 1: IL 3583 Color: White Side 2: Shape: Oval Other Popular Drug Imprint logo and 049 M 30 E 74 UCB 581 2.5/500 212 P 657 EP 50 F23 GG 335 CL91 C57 54 145 PH 020 ZL 1 logo and 97 E 18 63 H151 WPI 1118 L 125 NF0 PA 915 ML 57 SL P210 M 58 logo and D5 1000M BI 6 C369 ALTACE 10 mg SZ 987 par 022 93 3193 PFD 267 mg B 074 OBX Nitro-Dur 0.1 mg/hr A-010 20 BP 301