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Doctor insights on: Taking Too Much Thyroxine

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What could be the effects of taking too much synthroid (thyroxine)?

What could be the effects of taking too much synthroid (thyroxine)?

Being hyper: Too much synthroid (thyroxine) can make you feel hyper, cause diarrhea, weight loss, feeling hot or hot flashes, anxiety, poor sleep, heart pounding. Please speak with your doctor if you are having these symptoms. ...Read more

Dr. David Sneid
1,375 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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I was taking too much Synthroid (thyroxine) when I conceived. Could this cause chromosonal abnormalities in the fetus?

I was taking too much Synthroid (thyroxine)  when I conceived. Could this cause chromosonal abnormalities in the fetus?

No: Synthroid (thyroxine) level does not cause chromosomal abnormalities but it does affect the health of the fetus and the ability to carry through the pregnancy. If your level is too high, please see your doctor to get it readjusted during this critical time. Good luck. ...Read more

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Can taking too much Synthroid (thyroxine) plus cytomel, therefore having a very low TSH level, cause seizures?

Can taking too much Synthroid (thyroxine) plus cytomel, therefore having a very low TSH level, cause seizures?

Possible: Both high and low thyroid states can be associated with seizures. Seizures can be seen in 5-10% of high thyroid states and even more commonly when it is due to an overdose with medication. If you are experiencing this, go to the nearest er as this condition is life-threatening and needs immediate attention. Your doctors will also search for other conditions that may be causing seizures. ...Read more

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What can too much thyroxine do to the body?

What can too much thyroxine do to the body?

Problems: Like anything else, too much of a good thing is also no good. Too much thyroxine causes hyperthyroidism. This can cause palpitations, irregular heart rhythms, bone loss, muscle weakness, trouble sleeping, anxiety. In essence, thyroid hormone affects every part of your body. ...Read more

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Can anyone taking 75 mg of Synthroid (thyroxine) eat grapefruit?

Yes: But thyroid is ideally taken in the morning an hour before eating anything. ...Read more

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How much weight can you loose overdosing on synthroid (thyroxine)?

How much weight can you loose overdosing on synthroid (thyroxine)?

Don't do it: People who try this feel terrible and gain the weight right back. There is some risk of putting your heart into a rhythm disturbance. The most successful weight-loss happens when a person finds an aerobic sports activity that they actually enjoy, and can share with a partner / friend. ...Read more

Dr. Joseph Mathews
592 doctors shared insights

Synthroid (Definition)

Synthroid is a thyroid ...Read more


Dr. Charles Gordon
210 doctors shared insights

Levoxyl (Definition)

Levoxyl is a thyroid ...Read more