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 316 IP 46 AT 262 ZA 66 logo and 401 PATR E 647 OWP 1000 294 MYLAN 8030 114 T 19 GG 334 FIORICET CODEINE UL 10/325 M 58 4896 351 E 404 logo and 122 838 31 81 L 232 PH UPSHER-SMITH 0087 HLP 80 L14 Z315 15 mg VP 25 54 323 A029 1034 MT1 Climara (estradiol) 0.1mg/day P 1 ETO 200 MG EGLT 60 LEVOXYL CL61