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Levothyroxine Sodium Related Diarrhoea

Official FDA Reports8,417
Social Media Events61
Active Ingredients
  • Levothyroxine Sodium
Additional Terms for Diarrhoea
  • Diarrheas
  • Loose Stool
  • Diarhea
  • Diarea
  • Diaherra
Show more

  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Synthroid.


The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (AERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.

List of Possible Side Effects Reported

Report Date Dosage Indication Outcome Country Gender Age Weight (lbs)

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.

Social Media Comments From Around the Web

The following are comments from users that experienced side effects while taking Milnacipran Hydrochloride


... taking it because he doesn't think I need it. My latest TSH has increased to 4.27. I think he's wrong. I don't recall any side effects from Synthroid except maybe some diarrhea ,which I'd welcome now!...

Source:" Synthroid

View full report on drug related diarrhoea

Did the author experience diarrhoea while taking synthroid?

What is this?


started dostinex for prolactinoma and eltroxin on the same day so its hard for me to know what side effects to attribute to whome. Have noticed loose bowel movements (sorry if TMI) and sleepiness (mu...

Source:" Synthroid

View full report on drug related diarrhoea

Did the author experience diarrhoea while taking synthroid?

What is this?

Levothyroxine Sodium

i took levothyroxine and gave me severe diarrhea and then took the synthroid brand and made me nauseaus untill i threw up.now i have to try levoxyl...we will see

Source:" Synthroid

View full report on drug related diarrhoea

Did the author experience diarrhoea while taking levothyroxine sodium?

What is this?

Tell us about your Experience with Levothyroxine Sodium Related Diarrhoea

Thank you for sharing your experience with us!

Share Your Experience

Druginformer Identified Side Effects: Chest pain, Headache, Dizziness, Diarrhoea, Migraine, Weight increased, Cognitive disorder

Posted By Anonymous in askapatient.com on February 3, 2015 @ 12:00 am

Side Effects: Chest pain (visit to ER found nothing), cognitive deficiency (had trouble typing simple words, made many mistakes, troubke forming sentences), diarrhea, strong migraine like headaches, ...

Druginformer Identified Side Effects: Fatigue, Sluggishness, Lethargy, Diarrhoea, Drug ineffective, Weight increased

Posted By btownchaka in fdb.rxlist.com on December 10, 2014 @ 12:00 am

I was diagnosed with Hypothyroid about a year ago. They started me off at a lower dosage, I didn't see any change. went back for blood tests and the doc said I needed to up the dosage, so currently I'...

Druginformer Identified Side Effects: Pain, Cystitis, Pericarditis, Cyst, Depression, Diarrhoea, Kidney infection, Muscle spasms, Blood test

Posted By Anonymous in askapatient.com on October 23, 2014 @ 12:00 am

... So my doctor started me on synthroid. I developed cysts, I had a kidney infection, a bladder infection, my menses became heavy and lasting 6 or 7 days, I developed tailbone pain, and continue to battl...

Druginformer Identified Side Effects: Constipation, Headache, Abdominal pain upper, Diarrhoea, Somnolence

Posted By Anonymous in fdb.rxlist.com on October 12, 2014 @ 12:00 am

... my dosage from 50 mcg. to 100 mcg. not exactly sure why. For the past 2 or 3 months i've been having bad headaches and stomach cramps and bouts of diarhea and constipation along with drowsiness. Gon...

Druginformer Identified Side Effects: Flatulence, Constipation, Fatigue, Mood swings, Appendicitis, Insulin autoimmune syndrome, Diarrhoea, Discomfort, Disturbance in attention, Dyspareunia, Dyspepsia, Gastrointestinal disorder, Decreased appetite

Posted By Anonymous in askapatient.com on August 21, 2014 @ 12:00 am

Side Effects: These symptoms appeared about 6 weeks after I began taking the meds (doesn't include symptoms I was already having): Brain fog, low energy, GI upset (gas, heartburn, diarrhea, constipa...

Druginformer Identified Side Effects: Arthralgia, Headache, Dizziness, Alopecia, Abdominal pain upper, Diarrhoea, Disturbance in attention, Insomnia, Muscle spasms, Muscular weakness, Weight increased

Posted By Good old Granny in fdb.rxlist.com on July 18, 2014 @ 12:00 am

... switched me to this (not my Dr.) and after taking it for a month I had diarrhea, headaches, muscle weakness, insomnia, brain fog, dizzy spells, leg cramps, stomach cramps joint pain, hair loss, and we...

Druginformer Identified Side Effects: Crying, Alopecia, Diarrhoea, Heart rate irregular, Temperature intolerance

Posted By Anonymous in fdb.rxlist.com on March 28, 2014 @ 12:00 am

Hair loss, irregular heart rate, diarrhea, heat intolerance, crying all are my experience. Very bad drug.

Druginformer Identified Side Effects: Flatulence, Headache, Chills, Vomiting, Diarrhoea, Pyrexia

Posted By Mandy in fdb.rxlist.com on March 1, 2014 @ 12:00 am

This was the worst drug I have ever taken. The first dose I had a major headache, I assumed it was a simple side effect and would pass on. The second dose of this medicine I had gas and burbs that sme...

Druginformer Identified Side Effects: Diarrhoea

Posted By lyncz in fdb.rxlist.com on January 28, 2014 @ 12:00 am

No problems until this last refill. I seem to have diarrhea daily.

Druginformer Identified Side Effects: Constipation, Fatigue, Alopecia, Diarrhoea, Peripheral coldness

Posted By Cleo in fdb.rxlist.com on March 24, 2013 @ 12:00 am

... you don’t feel like eating. I still have hair loss, although I have thick hair thank god, I have cold hands, always tired but I don’t sleep well. I can have serious constipation and then diarrhea,...

* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.