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 611 721 1 455 AN901 20 IP 189 VRX VGR 50 H 49 364 L132 RP115 HP 148 L357 241 1071 5/1000 D D IP 140 M A12 KEFLEX 250 mg M 35 V30 logo and 502 TARO 59 577 G74 98 52 Y M 0 10 A B EL501 Tedor 255 WATSON 796 ID NTBC 5 mg P 175 346 RSV 5 266 M 147 DB02