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 L U R 127 L191 S 900 RP120 869 2 VRX 0901 ACTIGALL WAR 4 CITRACAL PA 917 031 H 49 Prenate Chew MYLAN 4250 393 E4 ZC19 976 GG 78 S405 1000 VIP100 CP113 N120 LILLY 4117 TREZIX logo logo and M n 356 MUTUAL 899 YS 02 ZA-35 MP 43 n 574 FL 10 V 1 CB 8 mg LAMICTAL XR 200 CH75 44 235