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Thyroid Disorders Message Board
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Old 02-14-2013, 09:51 PM   #1
Join Date: Jan 2013
Location: Portland
Posts: 5
undertheivy HB User
Smile Started thyroid medication for first time... extreme diarrhea, eek!

Hello all,

A liiiittle embarrassing, but here we go!

I just started taking thyroid medication for the first time *ever* in my life this week - to treat symptoms of an under-active (aka hypo) thyroid.

I am taking 50mcg of Levothyroxine every morning, on an empty stomach. The first day I took it - fine. The second day I took it - also fine. The third day I took it - oh my god! Everything was hunky-dory, until mid-evening, when all of the sudden, from seemingly out of nowhere (and I do mean nowhere) - I needed to poop like nobody's business, immediately.

I barely made it to the loo, where I discovered I had the worst diarrhea I have *ever* encountered. It was very liquidy, and more worryingly, there was food in it that I had only eaten earlier that afternoon, that had passed through very quickly, and not broken down.

It was very disconcerting, and I was curious if anybody else had experienced this symtom when starting thyroid medication?

Did you lower your dose, and did that help? Can your body build up a "tolerance" to the medication, enabling you to take a higher dose without the adverse symptoms such as diarrhea?

Your wisdom is, as always, appreciated.



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Old 02-15-2013, 03:27 AM   #2
Join Date: Aug 2007
Location: Finland
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Re: Started thyroid medication for first time... extreme diarrhea, eek!

Strange things can happen when starting thyroid medication. They may be temporary, cutting the dose in half for a while may help. Usually after a while the body adjusts to the med, sometimes another brand or type of med is needed (but I wouldn't go that far just yet). Give it a few days and see how things develop.

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