Pill Identification by Imprints: P21 Home Pill Identification by Imprints: P21 4 results LOSARTAN POTASSIUM 25 MG TAB Side 1: LU Color: White Side 2: P21 Shape: Oblong LOSARTAN POTASSIUM 25 MG TAB Side 1: LU Color: White Side 2: P21 Shape: Oblong LOSARTAN POTASSIUM 25 MG TAB Side 1: LU Color: White Side 2: P21 Shape: Oblong LOSARTAN POTASSIUM 25 MG TAB Side 1: LU Color: White Side 2: P21 Shape: Oblong Other Popular Drug Imprint L521 MD 562 T1 50 54 511 ASPIRIN L BRISDELLE E 263 A 48 54 135 Watson 370 617 CP 404 ACN 4 SZ 213 Lofibra 134 mg M 943 37 44 WATSON 151 LCE 50 605 SANDOZ 619 L 36 5880 logo and 242 MYLAN GT 16 MYLAN 731 B419 785 JSP 545 L12 403 503 AC39 TCL083 V221 274 par 121 logo SANDOZ 665 BERTEK 750 L199