C and D on the FDA 2877 and insert the word or  between the Affirmations. Note: The U.S. Customs Service will treat this entry as a. D Declaration for purposes of duty. Such requests must be made on the FDA 766; include Items 1, 2, and 3 under Declaration C, a. statement of the need to use the option C or D Declaration, a statement of how the product(s) will be brought into compliance and the.
There are 2 reasons that could be the cause behind your low TSH: 1  Your glands simply aren't producing enough;  Your thyroid gland is producing too much of the thyroid hormone which signals to your brain to stop producing anymore.
ELEVATED TSH: Some causes of elevated TSH include primary hypothyroidism (Hashimotos thryroiditis), TSH secreting pituitary tumor, thyroid hormone resistance, insufficient T4 therapy for hypothyroidism, adrenal insufficiency, iodine, lithium, and antithyroid drugs.