Pill Identification by Imprints: S 660 Home Pill Identification by Imprints: S 660 3 results PYRAZINAMIDE 500 MG TABLET Side 1: S 660 Color: White Side 2: Shape: Round PYRAZINAMIDE 500 MG TABLET Side 1: S 660 Color: White Side 2: Shape: Round PYRAZINAMIDE 500 MG TABLET Side 1: S 660 Color: White Side 2: Shape: Round Other Popular Drug Imprint HLA 80 WW 172 COUMADIN 4 A59 WPI 3720 GG851 540 cpc43 259 Flomax 0.4 mg 44-470 216 AAT 108 8 mg 93 657 GG 451 E 2 F 71 A 39 P294 RI 5 logo and 3062 MYLAN 1049 M 132 G 45 logo and 5 269/60 30 mg 54 029 W 718 54 591 537 RIBAVIRIN 200MG PA46 2 02 PX 1 N 344 PROCARDIA PFIZER 260 GRIS-PEG EP 25