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 B L G 51 Vivelle-Dot 0.025 mg/day M 1850 HP 61 L477 E 1 54 931 E 71 BRX 0.5 T 17 NAT 375 ZD 20 PD 222 MP 903 WW 174 318 COUMADIN 4 V250 VS 160 L133 S 493 MX 24 2087 V cor 131 L 80 453 Nitro-Dur 0.2 mg/hr RC26 832 100 P 200 C-122 VP 077 IP 203 LU E01 M 625 54 519 392 M 312 RI89