Pill Identification by Imprints: E 4 Home Pill Identification by Imprints: E 4 2 results ESTRADIOL 1 MG TABLET Side 1: E 4 Color: Pink Side 2: M Shape: Round ESTRADIOL 1 MG TABLET Side 1: E 4 Color: Pink Side 2: M Shape: Round Other Popular Drug Imprint Tiazac 360 ELP 2 1/2 SL 50 FLI 7 mg M 28 A03 57 55 93 832 QP 146 US 10 ACTIQ AE N030 O 250 or O-M B528 M 944 LL255 CL65 N 943 R718 FLI 14 mg U25 NL 791 S 111 721 1 M 41 A21 T200 CL 5 TV A18 1328 LAMICTAL XR 100 Neurontin 400 mg logo and 5313 T 194 A 40 M 2 M 713 L146 Nitroglycerin 0.2 mg/hr