Pill Identification by Imprints: EK 20 Home Pill Identification by Imprints: EK 20 2 results EFFER-K 20 MEQ TABLET EFF Side 1: EK 20 Color: White-Orange Speckled Side 2: Shape: Round EFFER-K 20 MEQ TABLET EFF Side 1: EK 20 Color: White Side 2: Shape: Round Other Popular Drug Imprint G23 AR 788 2175 GGN2 Theo-24 100 mg L234 923 Z45 I 11 WATSON 795 EP 136 logo and 2909 B 4 A100 SZ 344 676 L41 COUMADIN 10 RSV 20 V-Z-F logo and 4444 6469 396 NL 2 logo and 150 4893 ZBN 81/40 S405 500 G&W UT 2.5 A96 U 169 P-1 C55 ML 4 DAN 3120 5011 V A 21 D2/850