Levothyroxine

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Safety in Lactation: Thyroid hormones

5 November 2020Milk levels of thyroid hormones have not been measured after exogenous administration in humans. However, endogenous liothyronine appears to transfer into milk in higher concentrations…

Suggestions for Therapeutic Drug Monitoring in Adults in Primary Care

29 September 2020This document is intended to support local discussions on how to monitor commonly prescribed high risk medicines in primary care.    The monitoring parameters cited…

Switching between liquid and tablet/capsule formulations – Which medicines require extra care?

17 July 2020For a small number of medicines, there are differences in equivalent doses of oral formulations of the same medicine. This Q&A considers which medicines may…

Updated RMOC Guidance – Prescribing of Liothyronine

15 July 2019Updated RMOC guidance on the prescribing of liothyronine is attached.

Can patients on levothyroxine take sea kelp?

10 June 2019Summary The term kelp can refer to a variety of brown seaweeds. The iodine content in kelp products varies considerably, even between products of the…

What clinical evidence is there to support the use of desiccated thyroid extract products?

13 November 2018This updated Medicines Q&A evaluates the clinical evidence for the use of desiccated thyroid extract products including ‘Armour thyroid’