Astringedent X hemostatic is an aqueous 12.7% iron solution that works quickly to stop difficult bleeding. It contains equivalent ferric sulfate and ferric subsulfate. Note: Diluted Astringedent X hemostatic does not equal ViscoStat or Astringedent hemostatics. Use when a stronger, more potent hemostatic is required and when the attainment of quality hemostasis may be more challenging (e.g., in cases of difficult-to-stop, problem bleeding). 30ml IndiSpense syringe.