Pill Identification by Imprints: U 137 Home Pill Identification by Imprints: U 137 2 results CLONIDINE HCL 0.3 MG TABLET Side 1: U 137 Color: White Side 2: Shape: Oval CLONIDINE HCL 0.3 MG TABLET Side 1: U 137 Color: White Side 2: Shape: Oval Other Popular Drug Imprint WPI 3 AC40 KU 128 WPI 3385 W 50 H151 E 131 GX EX1 038 P95 RTG-400 logo and 4366 I 36 PAL 6 E 104 S190 SL 50 RESPA 177 Benadryl XL MES V 180 MP 577 TPV 250 PFD 267 mg PD 223 E 774 689 AN 2 logo and 35 G 5008 PLAQUENIL R12 T 150 ML 37 111 WATSON 411 L233 LLORENS logo and 161 WATSON 3211