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 MYLAN 2250 AV1 or AV2 S903 ZC 76 I111 SLX 102 A 928 E 410 CP 405 WPI 3332 PLIVA 334 501 V01 E 11 W 926 BL 07 675 202 115 P019 ANAFRANIL 25 mg 2355 RX 901 PX 3 TCL 131 L 300 Andrx 700 MF 1 TIGAN MP 277 AX 54 531 MYLAN 5420 CP 25 1140 ID 44 183 A534 G 3719