Pill Identification by Imprints: ATN Home Pill Identification by Imprints: ATN 2 results ATENOLOL 25 MG TABLET Side 1: ATN Color: White Side 2: 25 Shape: Round ATENOLOL 25 MG TABLET Side 1: ATN Color: White Side 2: 25 Shape: Round Other Popular Drug Imprint Estradiol 0.1 mg/day S12 H125 CPC2069 H10/325 M 134 APO 500 OLM WC001 21 4833M TYLENOL ER 44 235 MYLAN 162 44-503 L-2 U35 54 452 K6 A 40 logo and 152 K 27 906 93 3002 HP 287 93 5528 MX32 Celgene/ 150mg 974 497 HALCION 0.25 3QD B105 Tedor 255 L409 logo and ZA ACCOLATE 20 259 or 310 GG854 BCT 2 1/2