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Doctor insights on: Taking Too Much Thyroxine

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Dr. David Sneid
1,426 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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Is it harmful to take too much vitamin b12? Im taking 2500mcg daily.

Is it harmful to take too much vitamin b12? Im taking 2500mcg daily.

No: It's very safe. If you are taking it as an oral supplement, be sure you are able to absorb it by this route -- many people who are deficient cannot. Your physician knows how to tell. Best wishes. ...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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Is 5000mcg biotin too much medicine?

No: Dosages of up to 200 mg have been used without significant side effects. Daily recommonded allowance is 2.5 mg ( 2500 mcg). If you are deficient in a vitamin, it would be understandable that the dose would higher than the DRA. ...Read more

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What would happen if take too much nitorol? Taking too much nitorol

Nitorol OD: Call 1-800-222-1222 24 hours per day, 7 days per week to reach any poison control center in the United States. You will be connected with an expert who will direct you how to proceed. Please have all product information available when you call. ...Read more

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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

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Is 1000 mcg B12 too much while pregnant?

Is 1000 mcg B12 too much while pregnant?

Vit.B12 in pregnancy: Yes 1000 mcg is too much, recommended dose usually 2.5 mcg, i recommend prescribed prenatal vitamin. ...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

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Why people take too much stress?

Why people take too much stress?

Variety of reasons: Some people are so used to chaos in their lives that they aren't even aware that they are stressed. Some people have trained themselves to improve their performance when under a lot of stress. Many don't know how to get out of the stress cycle. I agree with dr pappas. Being grounded and lying stress aside for a bit - can feel good ( ; help to keep you healthy). ...Read more

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How much methadone is too much for dosage?

How much methadone is too much for dosage?

Any dose that causes: The patient to nod off, act drunk, or stop breathing is too high. When i worked in a Methadone clinic in 1980 in chicago, the average dose was about 45 mg. With the increase in heroin potency, I am seeing patients who have been or are on 200-300 mg a day. ...Read more

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How much is levothyroxin?

How much is levothyroxin?

Inexpensive: Very inexpensive, but unreliable. Brand name product costs more, but it worth it because it's reliable. ...Read more

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Can i take too much acetaminophen?

Can i take too much acetaminophen?

Yes: For a healthy individual, it is recommended to not use more than 3 grams in a 24 hour period. ...Read more

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Can i take too much hydrocodone?

Can i take too much hydrocodone?

If you're asking : Whether it's possible to take too much, the answer is a big yes. Always take medications as prescribed by your physician. Every medication has a potentially lethal dose. Hydrocodone is a narcotic which means it slows breathing and heart rate. Too much, especially if you mix it with alcohol, could slow both so much that you would die. ...Read more

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How much vitamins and minerals is too much each day?

How much vitamins and minerals is too much each day?

Depends: Depends on the vitamin, mineral, age and sex of the individual. Different needs at different stages of growth and life.. Some minerals and vitamins can be toxic-not just fat soluble vitamins like a and d, but also e.g. B6 (water soluble) which can cause nerve damage in excess (or deficiency). ...Read more

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I'm taking prenatal vitamins and i'm worried about taking in too much iron as an anmeic. How much is too much?

I'm taking prenatal vitamins and i'm worried about taking in too much iron as an anmeic. How much is too much?

Good question: You need to monitor your blood level of iron and ferritin. Also you may need to check a few other things such as serum folate (folic acid) and b12. The size and hemaglobin concentration on the basic CBC blood test is a start. If you have a low rbc count and your rbc size is small (low mcv) you may have iron deficiency. If the red cells are larger than normal think low folate (folic acid) or low b12. ...Read more

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Taking 2000iu /day vitamin d is it too much ?

Taking 2000iu /day  vitamin d is it too much ?

No, that's typical: Adults typically can take 1000 to 4000 units a day of vitamin d, so 2000iu per day sounds fine. If blood levels are still low, one can take more. Of course, if levels are high, then one should take less. Only certain people need to have levels checked. ...Read more

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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

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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?

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 I take St. John's wort if I am taking thyroxine?

Can I take St. John's wort if I am
taking thyroxine?

No interactions: It should be safe to take thyroxine with St. John's wort. A lot of medications do interact with St. John's however , so it is good that you are considering it. Good luck. ...Read more

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

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)?

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

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Is there a difference in taking name brand Synthroid (thyroxine) & generic?

Is there a difference in taking name brand Synthroid (thyroxine) & generic?

Yes: The fda allows for a 5% variance in brand name medications but a larger variance in generic "equivalents." synthroid and levothyroxine are not considered equivalents and thus not interchangeable. Therefore, stick with one; if you have started on synthroid stay with it, if you have started on levothyroxine stay with it. ...Read more

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Could you tell me what happens if i stop taking thyroxine 200 mcg for 1 month?

Could you tell me what happens if i stop taking thyroxine 200 mcg for 1 month?

Hypothyroid: If you are taking it for hypothyroidism, you will start to feel hypothyroid. Sluggish, cold, constipated, puffy, brittle hair, etc. ...Read more

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How much time does it take for the drug Synthroid (thyroxine) to start working?

How much time does it take for the drug Synthroid (thyroxine) to start working?

Awhile: Hi. It takes l-thyroxine (Synthroid, Levoxyl, Unithroid, others, & generic) about 6 weeks to be at a stable level in the blood, although some effects can be noticed in as little as a couple weeks. Be patient. It's worth it! ...Read more

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Can I change from taking synthroid (thyroxine) at night vs the morning? I take 50 mcg.

Can I change from taking synthroid (thyroxine) at night vs the morning?  I take 50 mcg.

Either: It is usually recommended that you take the medicine in the morning about an hour before eating. Fasting prior to the dose appears to be more important than whether it is taken in the morning or in the evening. Therefore nighttime is also fine. Hope this helps. ...Read more

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What will happen if i stop taking thyroxine and how long before i start seeing the side affects?

Less than a week: Depending on how underactive you are will determine how soon you will feel the effects of not taking your thyroid medication. It may be a week or it may be a month. It also depends upon how sensitive you are and how in tune you are to your body. ...Read more

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My Synthroid (thyroxine) medicine is stopped after 9 years since i started taking it is it normal?

My Synthroid (thyroxine) medicine is stopped after 9 years since i started taking it is it normal?

Can happen: 1. If given for wrong reasons initially 2. If you had thyroiditis which can resolve over time just make sure free T4 and and TSH are normal 6-8 weeks after stopping synthroid (thyroxine). ...Read more

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I'm taking Synthroid (thyroxine) med once a day and I started taking Herbalife would that in interfere?

Food interactions: To my knowledge, foods like dietary fiber, soybean flower, cottonseed meal, walnuts, calcium and calcium-fortified juices can affect the absorption of levothyroxin Syntroid & interfere with maintaining steady blood levels. So take these foods at the same time each day; and, if possible, avoid taking them within several hours of taking your levothyroxin. Hope that helps. ...Read more

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My wife taking Synthroid (thyroxine) 75ml. Is there any other medecine instead. Because it is too expensive. Thank you?

Synthroid (thyroxine) is: More expensive, but it is a quality medication. The generics are cheaper, but unreliable, with potency varying from product to product and batch to batch. They do not perform as consistently in the body and blood levels can vary. Go with generics if you have to, but they are an inferior product. Check with the company, they sell it directly. Try the 150 and break it in half to save some money. ...Read more

Dr. Joseph Mathews
620 doctors shared insights

Synthroid (Definition)

Synthroid is a thyroid ...Read more


Dr. Charles Gordon
220 doctors shared insights

Levoxyl (Definition)

Levoxyl is a thyroid ...Read more