Get informed: SYNTHROID

Safety/Interactions Indications Side Effects
Facts & Figures Effectiveness Discussion
MEDICATION SAFETY CHECK

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The average iGuard risk rating for SYNTHROID is ORANGE mostly because SYNTHROID may cause serious side effects if its dose is not tightly controlled. It means that SYNTHROID should normally be used cautiously to minimize the risk of serious side effects.

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Why do patients use SYNTHROID?

iGuard.org is currently tracking more than 32,450 patients that use SYNTHROID (or similar drugs with the same active ingredient(s)). Use the table below to learn why iGuard users take this product; click on any underlined condition to get information on other medications used for treatment.
DISEASE / CONDITION % AVERAGE SEVERITY
HYPOTHYROIDISM
100%

How well does SYNTHROID work?

iGuard.org regularly asks patients taking SYNTHROID to provide feedback on: disease/condition treated, effectiveness/satisfaction, side effects, and information they wish they knew prior to starting the medication. This feedback is continuously updated for the benefit of other members of the iGuard community.
Average Satisfaction Score
(out of 10)
77 %
Average Effectiveness Score
(out of 10)
74 %
92%   of patients are confident that the good things about SYNTHROID outweigh the bad things.


What do iGuard.org users wish they were told before starting this product?
30%
% patients who wished they learned more before starting
30% of patients taking SYNTHROID wish they were told more about this product before they started it.

TOP THINGS PATIENTS WISHED THEY KNEW...
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ABOUT SYNTHROID
Active Drug(s): LEVOTHYROXINE
WHAT DOES IT DO?
This product is primarily used to treat hypothyroidism. It consists of T4, one of the important hormones produced by the thyroid gland.
photo
VIEW: US Prescribing Info
VIEW: Wikipedia Content

HOW SAFE IS IT?
Your Risk Rating: PLEASE LOG IN
Average Risk Rating (ELEVATED)
Pregnancy Category A
BLACK BOX WARNING
This product has a black box warning relating to its ineffectiveness and dangers as a weight loss treatment.


FACTS & FIGURES
Date Approved 21 Aug 2000
US Pts on Drug 2007 15,437,137
Generic Available YES
OTC Available NO


What side-effects do iGuard.org users commonly report for SYNTHROID?

15%

15% of patients experience side-effects on SYNTHROID


2%

2% of patients experience SIGNIFICANT side-effects on SYNTHROID


MOST COMMON SIDE EFFECTS...
RESTLESSNESS
HAIR LOSS
HEADACHE
FATIGUE
PALPITATIONS
BREATHLESSNESS
DRY SKIN
INSOMNIA
= 10%

Drug Comments for SYNTHROID (LEVOTHYROXINE)

Comments, Questions, and Answers Show Newest | Oldest First 

Question/Comment:

I have been on this synthoird ? for over 4 yrs. i want without just to see my level 2 weeks ago
to see my numbers an it was 53 . I take 125 mg . I have no thyroid at all .They blame this on the chemo -i dont know. why i am hypo my mom had too much - I am also on water pill an potassitum just to name a few an seems all my medicine interacts with each other
Reading blogs above i also never knew i had to have blood levels of thyroid taken -also news to me . I really have gained weight too -any sugestions on how to loose > would be great
God Bless -sablelulu

49 year old female
Posted: 2008-09-02 02:14:53     Rating: Star Star Star Star Star

Question/Comment:

if your other thyroid is working .why should you take this drug.

56 year old female
Posted: 2008-09-01 03:18:09     Rating: Star Star Star Star Star

Answer/Reply:

The normal human body only contains one thyroid.

27 year old female
Posted: 2008-09-01 14:59:47     Rating: Star Star Star Star Star

Question/Comment:

i have had one of my thyroid taking out .and they found o 6.5 cm of cancer.so now they want to take the other one out. but i really had a hard time with this one.so i told them i want to wait.but my other throid has no cancer in it. so now they want to put me on this med. synthroid.. they said so it will stay like it is.so should i take this med? i am going to start today anyway and see how it goes.i am 56 female

56 year old female
Posted: 2008-09-01 03:11:39     Rating: Star Star Star Star Star

Question/Comment:

I am 55 years old. Ihave had hypothyroid problems for years.About 12 years ago, I was put on synthyroid and felt like someone had their hands around my neck. Told the dr. ,e saoid that my blood levels showed that was what I needed. Now last November I was put on levothyroxine. Another dr. raised my dosage and I had a adverse reaction. It was lowered and I seem to be doing fine. Is synthriod and levothyroxine the same thing?

55 year old female
Posted: 2008-08-30 20:17:21     Rating: Star Star Star Star Star

Answer/Reply:

I too have been on levoxyl (generic synthyroid) for a few years. The pharmacy that I use made a mistake with my last refill, and gave me levothyroxine. They asked me to bring the bottle
to them a.s.a.p. and the will give the next refill free of charge, after that I phoned my Dr. and he
told me that all 3 drugs are alike as far as the main ingredient, the by products are different and only known by the manufacturer.

Another important bit of information which I recently learned is, the pharmacy's change manufacturer's quite frequently (cheaper prices) yet we pay the same price. So please,
make a request to your pharmacy (request that they put into the computer) that if they choose
to change manufacturer's, you are to be informed before they fill your prescription.

I am sorry that this is so long, but it is because I care :)

46 year old female
Posted: 2008-09-04 09:57:49     Rating: Star Star Star Star Star

Question/Comment:

I AM 42 YEARS OF AGE. AND IT HAS BEEN ALMOST 3YRS SINCE I HAVEN'T TAKING MEDS FOR MY THYROID. IT IS COMPLETELY REMOVED AND EVER SINCE I HAD TAKEN MEDS IN THE PAST FOR IT. I HAVE BEEN NOT MY SELF, I SEEM TIRED AND DID NOT WONT TO EAT AND VERY RESTLESS AND VERY MOODY AND ALL OTHER SIGNS THAT COME WITH IT ALSO HAIR LOSS AND VERY DRY SKIN.
I COULD NOT AFFORD THE MED AND DOCTOR APPT. TIMES ARE GETTING ROUGH.
SO I WENT TO A HEALTH STORE, LIKE SUN HARVEST AND FOUND OVER THE COUNTER
PRODUCT, WHICH I TAKE THROID FACTORS AND L-TYROSINE PLUSE. AND I FEEL BETTER THAN BEFORE. MORE ENERGY AND LESS HAIR LOSE, BUT THE WEIGHT A FEW MORE POUNDS. SO AM I DOING THE RIGHT THING, TAKING MEDS OVER THE COUNTER, INSTEAD OF PRESCRIPITION DRUGS?

42 year old female
Posted: 2008-08-11 19:53:55     Rating: Star Star Star Star Star

Answer/Reply from iGuard:

THROID FACTORS AND L-TYROSINE PLUS are sold as a nutritional supplements and do not undergo the efficacy or safety studies that FDA-approved medications undergo. Thus, there isn't a lot of information available about how well these products work or what kind of side effects they have.

People with thyroid conditions really need to work with a doctor to manage their condition - routine follow-up now can help to prevent more serious conditions and more expensive treatments down the road. If hypothyroidism is not treated, it can raise your cholesterol levels and make you more likely to have a heart attack or stroke.

If you don't have a free health care clinic in your area, maybe your local hospital or your previous doctor can help you find more affordable health care and medications or they may direct you to an advocacy group that might be able to assist you.

Posted: 2008-08-19 12:48:31    

Answer/Reply:

In answer to the last question:

I have an underactive thyroid and I do not have insurance. I go to a clinic where all I have to pay is 15 dollars a visit and I get my levothyroxine from walmart which is only 4 dollars. I get my blood checked every six months to make sure the dosage should stay the same. I would recommend you to find a cheap clinic around your area and get your prescription from walmart. I do not know much about natural remedies but you are taking a chance by experimenting. I encourage you to do all of the research you can if you go for a non prescribed remedy.

year old female
Posted: 2008-08-21 10:48:37     Rating: Star Star Star Star Star

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SYNTHROID can have many different drug interactions. Drug interactions of SYNTHROID can vary depending upon other drugs and conditions in your health profile. A list of common drug interactions for SYNTHROID can be found., SYNTHROID side effects include a range of different complaints. SYNTHROID has been associated with different side effects. Side effects of SYNTHROID can vary with dose. This may the only place to learn about real world side effects of SYNTHROID. SYNTHROID safety are displayed on this page