Pill Identification by Imprints: E 511 Home Pill Identification by Imprints: E 511 2 results QUINIDINE SULFATE 200 MG TAB Side 1: E 511 Color: White Side 2: Shape: Round QUINIDINE SULFATE 200 MG TAB Side 1: E 511 Color: White Side 2: Shape: Round Other Popular Drug Imprint 54 323 XANAX MYLAN 5200 V42 MYLAN 183 M D6 7.5 mg RIFADIN 300 A IK C1 Andrx 826 GC M 775 19 BL 05 RCC GPE 51A GG TARO CZ ER 300 GX CL5 C43 473 logo and 4806 311 395 15 mg HP65 logo and 2849 WPI 1.5 LANOXIN Y3B N 225 M 54 G 0533 832 2 1/2 MYLAN 5340 N 20 West-ward 769 G 30 M111 BP 648