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 cor 150 ella M15 CL 3 SLC 223 Z16 SANDOZ 573 9 3 295 K 100 Nitro-Dur 0.3 mg/hr M L20 HYD 60 404 C51 MP 84 54 346 M 228 WATSON 3203 C280 K 400 logo and 833 1326 FPI B810 A 2 GG 336 L48 m10 GG 235 logo and 477 B 181 7.5 L41 MP 441 P 40 MYLAN 5220 NT 150 A973 BMS 1966