Before using it, inform your doctor about your current list of medications, over the counter products (e.g. vitamins, herbal supplements, etc.), allergies, pre-existing diseases, and current health conditions (e.g. pregnancy, upcoming surgery, etc.). Do not use this medicine at least 2 weeks before a scheduled surgery. It is usually not recommended for longer than 8 to 10 days. Please consult your doctor when taking this medicine if you are pregnant.