inheres in quality active ingredient aggregate aggrégat d'ingrédient actif active ingredient aggregate biological activity activité biologique d'un aggrégat d'ingrédient actif The active ingredient aggregate strength in the active ingredient aggregate of 10 units of Humalog insulin This is to represent the qualities that inhere in drugs measured by a standardized pharmacological unit. E.g. 1 unit of heparin is the quantity required to keep 1 mL of cat's blood fluid for 24 hours at 0°C. 1 unit of insulin is the amount required to reduce the concentration of blood glucose in a fasting rabbit to 45 mg/dl (2.5 mmol/L). A quality inhering in an active ingredient aggregate by virtue of the magnitude of a standardized biological effect of that active ingredient. Une qualité inhérent dans un aggrégat d'ingrédient actif en vertu d'une magnitude d'effet biologique standardisé de cet ingrédient actif.