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 C 1 K 23 CTI 141 44 546 54 135 DB03 L 64 126 253 or 306 187 ML 33 FL 14/10 M A30 54 956 W 905 54 722 N 947 M N3 Andrex 700 COUMADIN 2 MSD 106 AS and logo DC KEY 74 G453 BP 649 CPC 1325 MYLAN MT 28 44-527 RX904 93 5297 E 101 logo and 500 5683 ISA F20 100 AP 016 1 mg SLX 102 Z 3927 HP 62