Pill Identification by Imprints: S4 Home Pill Identification by Imprints: S4 3 results CAPTOPRIL 100 MG TABLET Side 1: S4 Color: White Side 2: Shape: Round SUMATRIPTAN SUCC 25 MG TABLET Side 1: M Color: White Side 2: S4 Shape: Round SUMATRIPTAN SUCC 25 MG TABLET Side 1: M Color: White Side 2: S4 Shape: Round Other Popular Drug Imprint 5 6 YH 018 INDERAL LA 60 R 25 E 724 EP 321 104 ALEVE SINUS&HEADACHE 143 A 04 MAXINATE M C53 WRF 10 GG 85 TCL333 976 CYP 179 3970 ESL400 DYRENIUM 50 mg MYLAN 182 L 166 HP 287 E150 12 or 13 or 14 or 11 ED PSE 231 216 APO 116 CL8 PRO 2L CP 333 MACRODANTIN 100 mg D-3 266 66 54 420 AN058 93 5298