Pill Identification by Imprints: N T4 Home Pill Identification by Imprints: N T4 1 result THEOPHYLLINE ER 400 MG TABLET Side 1: N T4 Color: White Side 2: Shape: Round Other Popular Drug Imprint CYP 196 M 93 LES200 ALO300 4 DCI P 240 MAXALT ZC38 R189 logo and 047 barr 15 mg L123 Onset M075 Fentanyl 50 mcg/hr TL 217 ibr L461 TCL340 U13 logo and 22 44 175 E3 or C2 CN 250 WRF 2 C 4 ZGNX 20 mg TV 5 G222 V 1 GILEAD 4331 A3 or F1 ALEVE COLD&SINUS C8 G 3742 210 G41 G 1 A5 1097 M L20 5971 V