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Related Experiment Videos

Diazepam and tests of thyroid function.

F Clark, R Hall, B J Ormston

    British Medical Journal
    |March 13, 1971
    PubMed
    Summary
    This summary is machine-generated.

    Diazepam did not significantly alter most thyroid function tests in euthyroid or thyrotoxic patients. However, a slight increase in one-hour thyroid radioiodine uptake was observed in euthyroid individuals.

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    Area of Science:

    • Endocrinology
    • Pharmacology
    • Thyroidology

    Background:

    • Diazepam is a commonly prescribed benzodiazepine.
    • Its potential impact on thyroid function requires investigation, especially in patients with thyroid disorders or those undergoing thyroid testing.

    Purpose of the Study:

    • To evaluate the effects of diazepam on thyroid function tests.
    • To determine if diazepam interferes with the assessment of thyroid iodide uptake and hormone release.

    Main Methods:

    • 12 euthyroid and 6 thyrotoxic patients received diazepam for four weeks.
    • Thyroid function tests, including radioiodine uptake and hormone release markers, were assessed before and after therapy.

    Main Results:

    • No significant changes were observed in thyroid iodide trapping and binding tests, except for a minor increase in one-hour radioiodine uptake in euthyroid patients.

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  • Tests for thyroid hormone release (protein-bound iodine, T-3 resin uptake, free thyroxine index) remained unchanged in both groups.
  • Serum thyroid stimulating hormone levels were not altered by diazepam therapy.

    • Conclusions:

    • Diazepam does not significantly interfere with most standard thyroid function tests.
    • Patients on diazepam can undergo thyroid status evaluation without discontinuing the medication.
    • The observed increase in one-hour radioiodine uptake in euthyroid patients warrants consideration but does not preclude diagnostic testing.