Pill Identification by Imprints: IL 3581 Home Pill Identification by Imprints: IL 3581 1 result THEOCHRON ER 300 MG TABLET Side 1: IL 3581 Color: White Side 2: Shape: Oblong Other Popular Drug Imprint 8.6 G650 G75 ZF 43 L77 44 588 RI ZC57 713 Z 300 MF 3 ZC 66 AN 515 283 GG 439 logo and 57 AC359 MYLAN 6725 D1 or P d p MP 116 555 606 M 29 M 17 152 R0.5 I 34 4895 K106 A IK 54 741 MYLAN 5220 93 53 SG 326 REL 54 447 logo and 39 DAN 5 5/120 G 0