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Doctor insights on: Why Does Your Appetite Change When Using Synthroid

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Dr. Walter Kobasa
Board Certified, Obstetrics and Gynecology
31 years in practice
1M people helped
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1
Nausea, fatigue, low appetite, headaches, vision changes, seeing spots, irritable, hot flashes. All related to TSH .007 needing lower Synthroid or no?

Nausea, fatigue, low appetite, headaches, vision changes, seeing spots, irritable, hot flashes. All related to TSH .007 needing lower Synthroid or no?

get checked: A TSH that low usually means the dose of synthoid might be too high.. Check with the doctor who put you on the meds to see what the next step is. ...Read more

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Dr. Cindy Juster
Board Certified
30 years in practice
2M people helped
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Dr. Joseph Mathews
545 doctors shared insights

Synthroid (Definition)

Synthroid is one of several commercial (non-generic) brands of levothyroxine. Levothyroxine is the most common form ...Read more


Dr. Hamsa Jayaraj
Board Certified, Internal Medicine
48 years in practice
508K people helped
2

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I have not taken my meds for a week and have a normal appetite then get back on my Synthroid and become ravenous ...any help for this ?

I have not taken my meds for a week and have a normal appetite then get back on my Synthroid and become ravenous ...any help for this ?

Check TSH: You may not need the current dose or may not need synthroid at all.Consult your doc & check lab work to regulate the dose of synthroid. ...Read more

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Dr. Cindy Juster
Board Certified
30 years in practice
2M people helped
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Dr. Robert Killian
Board Certified, General Practice
22 years in practice
327M people helped
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Dr. Gregory Seagraves
Board Certified, Pharmacology
11 years in practice
187K people helped
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Haven't had much appetite and had little nausea and lost a few lbs since total thyroidectomy 1 wk ago. Can this happen. On synthroid.?

Haven't had much appetite and had little nausea and lost a few lbs since total thyroidectomy 1 wk ago.  Can this happen. On synthroid.?

Synthroid: Synthroid could cause this; however, it is unlikely since you've only been taking it for a week -- with the exception of the nausea. The anesthesia used for surgery may have some effect. In addition, your body is healing from the surgery and the release of certain hormones may be involve in this as well. Other medication may also contribute ( ie: post surgery antibiotics). ...Read more

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Dr. Cindy Juster
Board Certified
30 years in practice
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Dr. Enrique Molina
Board Certified, Gastroenterology
29 years in practice
483K people helped
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I know that Synthroid is used for hypothyroidism but can it be used to increase appetite in people who eat too little?

No: It should not be used as an appetite stimulant. It will lead to more side effects, and actually suppress your own body hormone, which you may have enough. Extra thyroid hormone will increase your metabolism, your heart rate (leading to possible arrhythmias) and weight loss, diarrhea. Other medications are available as appetite stimulants. ...Read more

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Dr. Philip Kern
Board Certified, Endocrinology
37 years in practice
2M people helped
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Can a doctor prescribe Synthroid to increase a patient's appetite?

Not wise: That would not be a good idea. A high dose of synthroid would increase metabolic rate (and put a stress on the heart) and appetite may/may not go up, but usually it would cause weight loss. Synthroid should only be prescribed for hypothyroidism, or other clear thyroid related conditions, and should not be used for obesity or appetite. ...Read more

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Dr. Sewa Legha
Board Certified, Medical Oncology
44 years in practice
9M people helped
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Joint pain throughout body, can't sleep more 2-4 hr weight gain lack appetite on Synthroid .75 TSH 3.17@nite pain wake me up.Otc pain med no good?

Joint pain throughout body, can't sleep more 2-4 hr weight gain lack appetite on Synthroid .75 TSH 3.17@nite pain wake me up.Otc pain med no good?

You need a medical e: A medical exam is what you need. Please go see your primary care doctor and let him/her examine you and find out what is wrong. At your age there is high risk of serious medical ailments which can cause bone pains. Only an examination and check of blood tests and x-ray check ups can help to make a correct diagnosis. ...Read more

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Dr. Gurmukh Singh
Board Certified, Pathology
43 years in practice
95M people helped
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Over 1 week all day nausea low appetite bad headaches fatigue not pregnant not flu/sick TSH .007 do I need higher Synthroid or pituitary issue?

Over 1 week all day nausea low appetite bad headaches fatigue not pregnant not flu/sick TSH .007 do I need higher Synthroid or pituitary issue?

Hyperthyroid: Tsh value of .007 suggests hyperthyroid state and you may need to reduce the dose of synthyroid. Please consult your doctor asap. ...Read more

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Dr. Luis Villaplana
Board Certified, Internal Medicine
29 years in practice
49M people helped
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Do thyroid levels change as a person ages? Does everyone eventually need synthroid?

Do thyroid levels change as a person ages? Does everyone eventually need synthroid?

Thyroid needs : Do change as we get older. However, not everyone will need thyroid supplementation. ...Read more

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Dr. Michael Kleerekoper
Board Certified, Endocrinology
45 years in practice
4M people helped
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How long does Synthroid dosage change take to work? I'm 13w pregnant & just found out it's way too low so I'm worried I'll misscarry.

How long does Synthroid dosage change take to work? I'm 13w pregnant & just found out it's way too low so I'm worried I'll misscarry.

Thyroid: No need to worry. Your doctor needs to keep an eye on you as you proceed through pregnancy, changing the dose as needed. You and baby will be fine. Your obstetrician will look after you as well. ...Read more

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Dr. David Sneid
1,314 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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Dr. Cindy Juster
Board Certified,
30 years in practice
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