Pill Identification by Imprints: S407 Home Pill Identification by Imprints: S407 1 result POTASSIUM CITRATE ER 10 MEQ TB Side 1: S407 Color: Pale Yellow Side 2: Shape: Oblong Other Popular Drug Imprint G 0 L212 K 8 A300 835 L 232 U31 L 349 HH210 ML 89 GG 931 1313 M C51 C7 BP 815 S 10 A 0.5 T P EL600 97 VRX MX1 45 77 FL 14/10 B 35 B 546 AD T 20 SEARLE 253 or 306 D5 HP 145 M 030 HLP 80 590 logo and 11 GILEAD 62.5 UPSHER-SMITH 0226 ASPIRIN