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Understanding the Thyroid Function
NP Thyroid
By NP Thyroid

Disclaimer: The information provided is for educational purposes only and does not substitute professional medical advice. Consult a medical professional or healthcare provider before beginning any exercise, fitness, diet, or nutrition routine.

The Thyroid Gland1,2

A small, butterfly-shaped gland located in the neck, just below your voice box.
  • Secretes two thyroid hormones, T4 & T3, into the bloodstream, which are then carried throughout the body.
  • Thyroxine (T4) is the main hormone secreted by the thyroid gland. Triiodothyronine (T3) is the active hormone that is secreted by the thyroid. T4 is converted to T3 in tissues and organs throughout the body.
  • T3 hormones influence many bodily processes, including regulation of metabolism.

Control of Thyroid Function1,2

Thyroid function is controlled by the pituitary gland

  • The pituitary gland regulates the amount of thyroid hormones in the blood through the release of Thyroid Stimulating Hormone (TSH)
  • TSH tells your thyroid how much T4 and T3 hormone to produce
  • The thyroid gland produces just the right amount of T4 and T3 to keep levels balanced

REFERENCES: 1. Harvard Medical School. Thyroid Disorders. Fort Dodge: Harvard Medical School, n.d. Patient Education Center. Harvard Medical School. Accessed June 15, 2021. https://www.health.harvard.edu/topics/thyroid 2. Hormonal Health Network. Hypothyroidism Fact Sheet. N.p.: Hormonal Health Network, n.d. Hormone. Endocrine Society. Updated November, 2019. Accessed June 15, 2021. https:// www.hormone.org/diseases-and-conditions/hypothyroidism.

INDICATIONS & IMPORTANT RISK INFORMATION INCLUDING BLACK BOX WARNING
Important Risk Information 

Drugs with thyroid hormone activity, alone or together with other therapeutic agents, have been used for the treatment of obesity. In euthyroid patients, doses within the range of daily hormonal requirements are ineffective for weight reduction. Larger doses may produce serious or even life-threatening manifestations of toxicity, particularly when given in association with sympathomimetic amines such as those used for their anorectic effects.
  • NP Thyroid® is contraindicated in patients with uncorrected adrenal insufficiency, untreated thyrotoxicosis, and hypersensitivity to any component of the product.
  • In the elderly and in patients with cardiovascular disease, NP Thyroid® should be used with greater caution than younger patients or those without cardiovascular disease.
  • Use of NP Thyroid® in patients with diabetes mellitus or adrenal cortical insufficiency may worsen the intensity of their symptoms.
  • The therapy of myxedema coma requires simultaneous administration of glucocorticoids.
  • Concomitant use of NP Thyroid® with oral anticoagulants alters the sensitivity of oral anticoagulants. Prothrombin time should be closely monitored in thyroid-treated patients on oral anticoagulants.
  • In infants, excessive doses of NP Thyroid® may produce craniosynostosis.
  • Partial loss of hair may be experienced by children in the first few months of therapy but is usually transient.
  • Adverse reactions associated with NP Thyroid® therapy are primarily those of hyperthyroidism due to therapeutic overdosage.
  • Many drugs and some laboratory tests may alter the therapeutic response to NP Thyroid®. In addition, thyroid hormones and thyroid status have varied effects on the pharmacokinetics and actions of other drugs. Administer at least 4 hours before or after drugs that are known to interfere with absorption. Evaluate the need for dose adjustments when regularly administering within one hour of certain foods that may affect absorption.
  • NP Thyroid® should not be discontinued during pregnancy, and hypothyroidism diagnosed during pregnancy should be promptly treated.

Indication

NP Thyroid® (thyroid tablets, USP) is a prescription medicine that is used to treat a condition called hypothyroidism from any cause, except for cases of temporary hypothyroidism, which is usually associated with an inflammation of the thyroid (thyroiditis). It is meant to replace or supplement a hormone that is usually made by your thyroid gland.

NP Thyroid® is also used in the treatment and prevention of normal functioning thyroid goiters, such as thyroid nodules, Hashimoto’s thyroiditis, multinodular goiter, and in the management of thyroid cancer.