Subacute Thyroiditis Treatment & Management
- Author: Mark R Allee, MD; Chief Editor: George T Griffing, MD more...
Medical Care
- Analgesia is the initial focus of therapy for the pain seen in subacute thyroiditis. Nonsteroidal anti-inflammatory drugs (NSAIDs) are the first-line agents used to treat the pain. Large dosages are typically needed. Most NSAIDs provide comparable efficacy of pain relief. Corticosteroids can be used with patients who fail NSAIDs or who have severe pain.
- Corticosteroids are highly effective, and relief of pain is quick and dramatic. If pain and tenderness do not disappear within 72 hours of the start of therapy, the diagnosis of subacute thyroiditis should be questioned. Prednisone is administered in dosages of 40-60 mg per day. After 1-2 weeks, the steroids are tapered slowly. Symptoms of thyrotoxicosis are also alleviated with glucocorticoids.
- Beta-blockers may be used if symptoms of adrenergic stimulation are troublesome. Propranolol has the theoretical advantage of inhibiting conversion of T4 to T3 at higher doses. Beta 1 selective agents (metoprolol or atenolol) have more convenient dosing and are better tolerated.
- Thionamides are not indicated because the mechanism of thyrotoxicosis is leakage of hormone from damaged thyroid follicles not overproduction of the hormones.
- When thyrotoxic symptoms are severe or if the patient cannot tolerate beta-blockers, ipodate or iopanoic acid can be used. They are potent blockers of conversion of T4 to T3. At a dose of 500 mg twice a day, these drugs rapidly normalize T3 levels and ameliorate the hyperthyroid symptoms.
- The hypothyroid phase does not require treatment; however, if the patient is symptomatic, levothyroxine may be initiated with successful discontinuation after an arbitrary time of approximately 6 months.
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