Ansulin 30/70 is a biphasic insulin formulation, combining 30% regular insulin (short-acting) and 70% isophane insulin (intermediate-acting). This formulation provides a rapid onset of action along with a prolonged effect, making it useful for controlling blood glucose levels in both Type 1 and Type 2 diabetes patients. It helps control blood sugar levels throughout the day with the combination of fast-acting and longer-lasting insulin.