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Armour Thyroid Oral

Generic Name: THYROID - ORAL
Pronounced: (THYE-roid)

Armour Thyroid Oral Warning

Thyroid hormone should not be used either alone or in combination with diet pills to treat obesity/cause weight loss in patients with normal thyroid production. If used in combination with diet pills (appetite-suppressant drugs), serious, even life-threatening effects could occur.

Armour Thyroid Oral Side Effects

Nausea and partial hair loss (temporary) may occur in children in the first few months of starting thyroid hormone. If either of these changes persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

It is also possible to have too much thyroid hormone. Tell your doctor immediately if any of these signs of too much thyroid hormone occur:

  • diarrhea
  • headache
  • heat intolerance
  • irritability
  • menstrual changes
  • nervousness
  • trouble sleeping
  • heavy sweating
  • unusual weight loss


Tell your doctor immediately if any of these rare but very serious side effects occur:

  • fast/irregular/pounding heartbeat
  • trouble breathing with exercise
  • swelling of the arms/legs
  • extreme weakness


Seek immediate medical attention if any of these rare but very serious side effects occur:

  • chest/jaw/left arm pain


A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include:

  • rash
  • itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing


This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. In the US, you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088.

In Canada, you may report side effects to Health Canada at 1-866-234-2345.

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