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 2368 93 3193 M 51 876 BACTRIM IP 53 S21 M L53 54 215 G 021 WPI 338 AN 511 W-30 AP 016 MP 4 K ST 300 415 I 49 AC356 VPHEME B105 L321 54 857 CA logo and 2371 C134 K 25 logo and 401 A-294 1250 GG637 DAN 5555 EP 118 logo and TJ FP650 M 577 TL710 782 RSV 20