J.CROW'S Lugol's Solution of Iodine 2% 

Calculating Number of MG's of Iodine and Potassium Iodide per Drop of Lugol's Solution:
LUGOL'S 5%: Each VERTICAL drop is about 6.25 mg's of iodine/potassium iodide (2.5 mg iodine, 3.75 mg potassium iodide) and 2 drops is about 12.50 mg's of iodine/potassium iodide (5.0 mg iodine, 7.50 mg potassium iodide). Compared to iodine and potassium iodide tablets, J.CROW'S Lugol's Solution offers big savings.
LUGOL'S 2%: Slightly less than 1/2 half the above measurements.

Approximately 1200 vertical drops per 2 oz. container. To use as a water purifier add 3-6 drops per liter of water.

Made from premium ingredients, the iodine used in J.CROW'S Lugol's Solution is derived from mined crystals from 320 million year old natural brine deposits two miles beneath the earth's surface in Western USA (one of the few places in the world where such deposits exist). Not made from shellfish. The water used is distilled, pure, New Hampshire spring water. Always fresh. Does not expire. Store at room temperature out of direct sunlight. No need to refrigerate.

Be safe, keep J.CROW'S Lugol's Solution of Iodine on hand.