Herbal medicine prescribed by a Korean medicine doctor to match your constitution and symptoms uses raw materials that meet domestic pharmacopoeia standards, and herbs requiring toxicity caution are excluded from the start. With any medication, long-term use requires monitoring of liver function (AST, ALT) and kidney function (creatinine), and it is safe to combine blood tests if taking it for more than 3 months. If you are separately taking health supplements, herbs, or Western medications, there is a possibility of interactions, so please be sure to tell us during your consultation. If you usually have high liver values or reduced kidney function, you must mention it at your first visit.