What is the correct dose of Lugol's iodine solution and duration of therapy for preparing a thyrotoxic patient for surgery and minimize the risk of thyroid storm?

I have a bottle of Lugol's Solution 2% and the label says it contains a 94% distilled water 4% potassium iodide and 2% iodine and it is a 2-ounce bottle. Comes with a dropper.