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 M162 U3 m 156 54 771 BP 650 54 549 LAMICTAL XR 25 or 50 401 ZA-18 FC 119 Tiazac 180 T 19 UPSHER-SMITH 0228 D 1200 N 25 0425 A 2 PBT WATSON 795 ML 22 B 074 I 36 B4 M 255 HZT GG 340 AR 374 575 GG 168 54 466 Y 46 54 602 H150 L441 CN 90 755/93 PY 1 S 20 H 012 Celgene/ 150mg