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 553 KX52 44 347 PROCARDIA XL 90 OXC 600 TCL242 960 GLUCOTROL XL 5 GS TF7 GSI1000 54 757 U46 S 434 Midol TZ 2 TL050 568 100 mg L236 P297 32 10LA S 25 M C52 TV 5655 M945 FL 21/10 SZ245 93 658 BMS 1965 Climara 0.06mg/day BP 321 PAL 1.5 PLIVA-648 269/60 HP 43 logo and 1000-40 IX U29 E P A 32 8 8