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 Niraparib 363 1120 V20 S251 C370 M S7 331 WPI 3720 FV NB-890 M 722 DIFLUCAN 100 002 A 44 758 C4 BI 7 SZ 225 LIN 600 GGD7 DX41 U S 556 L553 LBH 20 mg ML 040 CellCept 500 BMS 200 mg 273 EP 133 IPX066 ZC46 A 04 3RP G 343 M 1820 RH38 2 58 InterMune and logo 267mg