Pill Identification by Imprints: T91 Home Pill Identification by Imprints: T91 1 result CARBAMAZEPINE ER 100 MG TABLET Side 1: T91 Color: White Side 2: Shape: Round Other Popular Drug Imprint L237 ZC18 logo and 65 M451 e5 111 B 566 93 321 233 P 40 MYLAN 6897 M161 MYLAN FE 200 G452 MP 26 H 009 Apetensio XR GG 296 REL V.5 A05 logo and 10 Fentanyl 50 mcg/hr 415 FENTANYL 1600 L 2 P 2.5 PX 3 AHI 2 P293 OP MYLAN 1259 HYPROST GG 341 DISTA 3107 ZE67 B 293 WW929 ELP 5 1032 U-S 40