Last Update November 28, 2015
Method of use: Injection, Pill
Prescribing mode: Rx
Levothyroxine, also L-thyroxine, synthetic thyroxine, or 3,5,3',5'-tetraiodo-L-thyronine, is a synthetic form of th...
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Last Update November 28, 2015
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Does Levothyroxine cause Diarrhea?

Diarrhea is a known side effect of Levothyroxine
#29 in Levothyroxine discussions - 366 posts discuss Diarrhea with Levothyroxine. Diarrhea is #29 concern in Levothyroxine discussions.
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I started Levothyroxine sodium 25MCG about 3 days ago after my doctor told me that I am slightly hypo and for the last 2 days I have been experiencing diarrhea, stomach craps, nausea... I'm probably going to have to call my Doctor on Monday.
Jamie Fleck
October 28, 2015
Just curious what your Dr ended up telling you or doing about the diarrhea. I am in the exact situation right now. I just started taking Levothyroxine Sodium 25mcg about 3 days ago as well. Last 2 days have been bad diarrhea, cramps, bloating etc. I thought it was the protein shake I started about the same time but I did not drink any today and still have the symptoms. After reading about people having the same issue when taking the LTS, it makes me think the med could be my cause as well. I will probably call my own Dr tomorrow morning but just curious what you found out.

Can levothyroxine cause diarrhea
I have been taking levothyroxine 50 mcg for about 4 yrs but my doctor increased my dosage to 75mcg it gave me diarrhea on and off for two months and then it stopped now he got me on 88 mcg and that's also giving me diarrhea is this normal because when I was on 50 mcg I never got diarrhea
April 15, 2014
All the brands..the 50mcg pilsl are the "purist" version of the levothyroxin medicine.
April 15, 2014
The reason you didn't get diarrhea with the 50 mcg table is because it doesn't have a lot of fillers and other stuff like sugar free sweeteners ,which by the way, can does cause diarrhea.
February 17, 2014
levothyroxine has mannitol in it which is a type of sugar free sweeter. I have the same reaction to it and am switching to another brand.

id anyone stop taking there medication and get diarrhea...
" I stopped taking my Levothyroxine.. I had to stop taking it about three days ago. I'm waiting for my endocrinologist to put me on Armor instead. Did anyone... "

for symptoms?My husband has been experiencing diarrhea...
" ...fever, chills. Stopped taking levothyroxine, started plexus slim. Causes for symptoms? My husband has been experiencing diarrhea for the past five ...and chills. He abruptly stopped taking his... "

of levothyroxine. Today I have diarrhea really bad. Is...
" ...hit. Boy DID it!!! I was soooo tired. I could hardly stay awake. Feel very weak too. Went and had ...enough I'm now hypo. Started 50mg of levothyroxine. Today I have... "

9%. However I have started lately to get diarrhea...
" ...med, but it gives me diarrhea So I started taking levothyroxine and it has improved my condition (which were neurological symptoms) 99%. However I have started lately to get diarrhea and am pretty... "

Have dry skin, nails in bad shape, occasional diarrhea...
" ...hypothyroidism. I am taking Levothyroxine. Have dry skin, nails in bad shape, occasional diarrhea and... "

eelings and feel as though I am going to have diarrhoea....
" ...just took my first levothyroxine tablet and am experiencing side effects of nausea, some panicky feelings and feel as though I am going to have... "

on Friday, 22nd and have had a touch of diarrhea...
" I started the levothyroxine on Friday, 22nd and have had a touch of diarrhea since, beginning about 8 hours after starting it.... "

can be an indication of Addison's disease and levothyroxine...
" ...adrenal function been checked? Feeling sick, having diarhea or being dizzy, especially in warmer weather can be an indication of Addison's disease and levothyroxine can make this worse. Addison's... "

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