Pill Identification by Imprints: R52 Home Pill Identification by Imprints: R52 2 results POTASSIUM CL ER 10 MEQ CAPSULE Side 1: LU Color: Blue Side 2: R52 Shape: Oblong POTASSIUM CL ER 10 MEQ CAPSULE Side 1: LU Color: Blue Side 2: R52 Shape: Oblong Other Popular Drug Imprint L123 Lilly 3227 LCI 1338 SZ 465 1490 U 136 173 ACTIQ 400 CR 500 S77 CL 58 W 716 902 WW 172 TCL347 93 7336 270/80 2368 MYLAN 1049 P02 1300 WAR 5 OV 111 N20 logo and 50 EP 119 UT 1 1310 GG 623 TL 121 OPI L-FLAV RP120 RC17 RDY 343 4943 TCL 280 91 176 12