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 VIP103 E300 G 343 S5 A 2 1 ROBAXIN 500 ucb 250 M111 836 D 88 567 RC25 WATSON 383 or WATSON logo and NR logo and L001 753 V359 N 11 L476 FEL 400 L or LU 93 5268 P30 logo and 658 LOTREL 2260 R4 L067 391 LL 254 54 242 logo 1117 A my SR 375 APO 019 45 or 1047 NT6 Theo-24 400 mg logo and p 832 100 L 128