Pill Identification by Imprints: 536 Home Pill Identification by Imprints: 536 1 result POTASSIUM CITRATE ER 5 MEQ TAB Side 1: 536 Color: Tan Side 2: Shape: Round Other Popular Drug Imprint Benadryl n 352 54 722 bull symbol L131 logo 20 EP 131 BN6 SJ 54 006 K 44 N 10 S903 logo and 242 OP 707 GLYSET RIS 104 5382 logo 133 MSD 711 93 7371 SZ 431 TR 658 SZ442 229 DAN 5782 54 650 G821 C 2 ZF 24 OLM PROCARDIA XL 90 54 190 MYLAN 335 58 77 3 7 326 SYPRINE I 52