Re: When does this finally become effective?

Iodine needs to be taken for a lifetime. We live in a sea of toxins that will come flooding back into your body if you ever stop taking iodine. After you have become fully Iodine sufficient, as measured by the Iodine Urine Loading test, you can reduce your Iodine dosage to a "Maintenance Level." Dr. Brownstein recommends this level to be 12 to 50mg iodoral daily, if you reduce the toxins Fluoride, Bromide & chlorine. You should also continue the co-supplements for optimal health.

More about iodine:
https://sites.google.com/site/iodinereferenes/iodine-support

Grizz