Doctor insights on:
Synthroid 75 Mg Side Effects
Hyperthyroid: Too much Levoxyl (thyroxine) can give you the symptoms of hyperthyroidism. Most importantly it can cause osteoporosis. You can have a rapid heart rate, tremor, diarrhea, hair loss, elevated blood pressure, anxiety and weight loss among others. It is important if you are on this medication to see your doctor regularly and check your thyroid levels. ...Read more
There are none: Synthroid (thyroxine) is a man-made replacement for your own thryroid hormone. There are no side effects per se because the drug will bind to the same receptors that your thyroid hormone binds to so the body does not use the drug as a synthetic. It is possible to take too much Synthroid (thyroxine) and then have effects of excess thyroid like rapid heart beat. ...Read more
When TSH is low: People who take thyroxine for simple hypothyroidism should have normal TSH to be safe. They should not loose weight, unless their prior weight gain was due to hypothyroidism. Taking too much thyroxine can cause atrial fibrillation and osteoporosis. On the other hand people with thyroid cancer are sometimes given a slight excess of thyroxine to prevent the cancer from returning. ...Read more
Thyroid treatment: 25 mcg of levothyroxine is a very low dose; a normal dose for hypothyroidism is typically much higher. The only side effect is taking too much (hyperthyroidism: palpitations, sweating, tremor, etc) or not taking enough (hypothyroid: fatigue, cold, etc). But such symptoms can be from other things. You need to get levels checked and talk to the doctor who initially prescribed this. ...Read more
I have to stop taking Synthroid (thyroxine) for a thryroid scan test. What are the side effects, I have been on medication for 8 years?
Fatigue: Main symptom would likely be fatigue. May get constipated, palpitations, restless feelings, being grumpy. But if u'r doc ordered I strongly suggest u follow up. It's only a week, and u may not even experience much. ...Read more
Side effects of taking overdose of Thyroxine sodium 50 mcg, my frnd takes 30 tablets in place of 1 tablet. So, what is the side effects? & wht I do?
Er: Your friend should go to the nearest ER ...Read more
My 4 year old took 8 of my 200mcg synthroid (thyroxine). The p.A.-c said it would not bother him. But I am still worried. Is there instant side effects or longer?
Overdose: Call poison control right now. They will calculate how much he got according to his weight and they will tell you what you need to do and what symptoms he/she may have. Any time your child takes medications not prescribed for him/her always call poison control right away. The number should be in the front of your phone book. ...Read more
Too much Thyroid?:
Taking too much thyroid medication can lead to all kinds of problems, including sweating and heart palpitations and rapid heart beat. If you are experiencing these symptoms it is time for a visit to your physician and a blood test to measure your TSH levels at the very least. ...Read more
Being treated with synthroid for hypothyroidism. Side effects seem to only stem from complications if you become hyper. Is this true?
No: Hypothyroidism if undertreated will have symptoms of fatigue, dry skin, hair falling out, weight gain, higher cholesterol. If overtreated get weight loss, heart races, risk of heart racing irregular beats, atrial fibrillation, sweats, anxiety, palpitations, eyes bulge ; so depends, just keep tsh level within 0.4-4.5 and should be normal ...Read more
If you're on Synthroid (thyroxine) for hypothyroidism and having side effects what other med would you prescribe?
What side effects?: Hi. The only "side effects" would be if the l-thyroxine dose isn't right. L-thyroxine is the hormone the human thyroid gland secretes. The thyroid and its treatment gets blamed for more stuff it has nothing to do with than any other hormone system in the body. Be cautious in assigning blame to l-thyroxine...you're probably incorrect in your assessment. Any thyroid hormone prep can be used instead. ...Read more
As I've thyroid, I'm taking l-thyroxine 100mcg medicine since one month. Pls tell me if there are any side effects of this medicine like weight gain.
No side effects.: Thyroxine is a replacement hormone that takes the place of your naturally occurring hormone. Thyroxine can give expected effects if too much or too little is taken but these are not "side effects." keep your TSH on the low end of normal — say below 2.5 and all will be well. ...Read more
Been taking Synthroid (thyroxine) for about a yearany side effects that I need to know about? Also, was taking it during 2nd 3rd trimester, she "shivers" sometimes
Correct dose?: Make sure you're on the correct dose. Get your levels checked. If they're ok, it's like your own thyroid was doing the job -- no side effects since it's just replacement. ...Read more
I was born with congenital hypothyroidism and have been taking Synthroid (thyroxine) since. I have missed about 2-3 weeks of taking my dosage. Side effects?
I have hypothyroidism and take Synthroid (thyroxine) daily in the a.M. My endo & doc didn't fill & I went through some nasty side effects... Normal? Anger, weight
I was just diagnosed w/ hypothyroidism & my TSH was 16.33. How severe is that? I was prescribed Synthroid (thyroxine) 25 mcg but am still feeling side effects of hypo
Stopped synthroid (thyroxine) on Feb 13 (2 weeks back) because of side effects. How soon can I get TSH, free T3 and T4 tested to get real values and consult doc?
Now: It is not a good idea to discontinue your medication without consulting your doctor. Please see your doctor ASAP. ...Read more
Borderline hypothyroid (TSH varies btw 2.7 to 4) n PCOS. Don't want to take Synthroid (thyroxine) coz of side effects, what else can I do to keep energy & mood up?
My TSH levels are at a 4.25. I am currently taking 50mcg of synthroid (thyroxine). My doctor upped my dose to 75mcg. I am afraid of side effects like racing heart?
Take it: Adjusting a thyroid medicine is both an art and science. You need to be "euthryroid" meaning normal tsh, t3, (liothyronine) T4 and must feel well as the normal range is made for a population and not your particular body. Fine adjustments must be made between you and a trusted doctor with an aim to make you feel well and healthier and avoid side effects such as palpitations. So go-slow. ...Read more
Son is 10 has ADHD & hypothyroidism. Did well on Kapvay & Straterra until started synthroid (thyroxine). Now ADHD not controlled. Stimulant side effects profound?
Diseases: Your son needs to his doctor as soon as possible. ...Read more
Just started on synthroid (thyroxine) (finally!!!) how long before symptoms improve (cold intolerance, brittle nails, hair falling out, constipation? What side effects should I watch for or expect? How long before dose increase?
I usually advise:
My thyroid patients that it may be SEVERAl WEEKS for them to notice a "difference" and THAT is when I re-check the tests at 2 weeks to begin with!
The "cold intolerance " is usually the first to "respond"
BE PATIENT!!! It may take several visits before your problem is "sorted out" Hope this helps!
Dr Z ...Read more
None: Hi. L-thyroxine (Synthroid among others) is the normal human thyroid hormone. It has no side effects. The only "side effects" of l-thyroxine are if there is too much (hyperthyroidism) or too little (hypothyroidism) of it. Your doc will monitor your TSH and free T4 to make sure your dose is properly adjusted. Good luck! ...Read more
Yes, but . . .: Yes, they are possible side effects, but don't stop your medication before contacting your doctor. They could be does-related (you may need a smaller dose) or even unrelated. That is, it could be a coincidence, and the cause might be something else (like an infection). Get checked straight away if the diarrhea and rash have not already resolved. ...Read more
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
Rash: In general, it's a very safe drug. Possible side effect is a rash, caused by the dye used to make the pill color. When this happens, it's recommend to use the white pill to see if the rash goes away. The white pill contain no dyes. If the rash goes away, then it's likely the dye. Other side effects: if use too much: fast heartbeats, shaking, nervousness, diarrhea, headache, insomnia, hair loss. ...Read more
Probably nothing: The effect will be minimal if at all. ...Read more
Dr priscribed 25mcg thyroxine after 14day accidently I took 88mcg two day so side effect became again 25mcg start but side effect present what I do?
Skip 4 days, no meds: Do not take any thyroid medication for 4 days then resume your 25 mcg again. ...Read more
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