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Parenteral alternative for levothyroxine?
Differences in action?

more rapidly metabolised - few hours to effect, 24-48 hours until effect ends


Starting dose for levothyroxine
adjust dose how often?

Under 49: 50-100microg daily
Over 50/cardiac disease: 25microg daily

4 weeks


Caution with levothyroxine?

Cardiac disease - therefore baseline egc may be valuble as changes induced my medication can be confused with ishcaemia


What is a sign of too fast a dose increase of levothyroxine

diarrhoea, nervousness, rapid pulse, insomnia, andinal pain (if latent myocardial ischaemia), termors