Pill Identification by Imprints: S406 Home Pill Identification by Imprints: S406 1 result POTASSIUM CITRATE ER 5 MEQ TAB Side 1: S406 Color: Pale Yellow Side 2: Shape: Round Other Popular Drug Imprint 123 RH38 12 ML 44 MYLAN 334 POTABA 51 WATSON 2404 E658 TCL242 321 8 DCI VP 012 R 50 ML 61 PREMPRO 0.625/5 or PREMARIN 0.625 311 AV AP043 44-292 G&W 0555 TCL 003 5413 BTG W962 G452 Sandoz 663 PV20 logo 1117 4741 WATSON 461 MYLAN 199 M162 logo and LANNETT POT 40 BP M RE4 783 GG A ms KU 119 0200