Leicestershire Health Community
Medicines Formulary
6 Endocrine system
06-02-01 Thyroid hormones

Levothyroxine Sodium Levothyroxine
First Choice
Long half life (about 7 days) so full effects may not be seen for several weeks. Do not monitor or adjust dose more frequently than every 2-3 months

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Liothyronine Sodium

For patients who have had an inadequate response to thyroxine alone, in line with RMOC guidance, discontinuation if no improvement after 12 months.

Also used by specialists in psychiatry for treatment of depression where other therapies have failed unlicensed use)

Link  Leicestershire Guidance: Treatment of Hypothyroidism with Liothyronine

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Armour Thyroid
Non Formulary

This dried thyroid extract is recommended in a number of populist internet sites and magazine articles. There is no clinical trial evidence of benefit, and this product is not recommended by endocrinologists on either side of the Atlantic.                                                                   

Link  British Thyroid Association Statement: Armour are NOT supported

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