Levothyroxine Helps Information

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Popular Questions

How bad is it to skip a dose of levothyroxine? If one dose is fine to miss, how many aren't? my husband failed to fill my prescription for levothyroxine and the pharmacy I get it from is closed today (Saturday) so I am concerned about the repercussions of skipping a dose or two. Please help. Thank you in advance.

jen replied: "Just fill it and get it to him as soon as possible. He'll be fine, health-wise, until then. It's never good to skip medicine but levothyroxine takes a long time to build up in his system and he isn't going to run out of thyroid hormone in his body overnight. Just make sure he gets it as soon as possible!"

RM replied: "Levothyroxine has a very long half-life of about a week. Meaning it takes a week for the blood level to drop by half. No worries at all about missing a dose or two. In fact, the only reason its prescribed daily is that people are more likely to remember that way."

avatarking replied: "It depends on your thyroxine level. If your on levothyroxine, I will say that you must not skip a dose because it may affect your metabolism leading to complications."

Should a nine year old be taking Levothyroxine and Seroquel at the same time? We just found out a family member has been prescribed them by two different doctors and we are concerned....Thanks for any help!

jake replied: "probaly not"

Da Bomb replied: "When the doctor is out, you can usually find a pharmacist who can answer those questions. It is probaly ok as levothyroxine is to make the thyroid function normally. It is important to tell any doctor what you are taking. A question doctors usually ask when seeing a paatient for the 1st time is, "Are you taking any medications." It is up to the parents to be sure the child is properly cared for."

Are synthroid and levothyroxine the same drug? My doctor wants me on synthroid but my pharmacy is pushing generics and gave me levothyroxine.The pharmacy says they are the same and the doctor says no.Also can the synthroid and the levothyroxine be taken together safely?I am taking .250mcg of synthroid and need to take .25mcg more.Any help will be great full.

LeeA replied: "According to my PDR they are the same thing. (Physicians' Desk Reference) It is just the generic, which is much cheaper. I truly believe the pharmacist is correct."

knicname replied: "I have low thyroid & your MD is right. Although Synthroid is the brand name & levothyroxine is "the same", MD's will decide to give you Synthroid or one of the generics, but once you start on one you are supposed to ALWAYS use that medication. On the prescription your MD needs to write "DAW" in the box on the bottom so the pharmacist MUST give you the brand name. I believe they can have different effects. I have taken Synthroid for over 10 years. Also I don't think it's a good idea to mix them. Call your MD tomorrow & have him write you a new prescription for the total amount of Synthroid & make sure he writes DAW. Good luck & feel better."

Lisa A replied: "All Synthroid IS levothyroxine. Levothyroxine is the name of the drug, Synthroid is the brand name. But not all levothyroxine is Synthroid. There are other brands of levothyroxine besides Synthroid. There is nothing wrong with taking generic levothyroxine. The thing is, once you start on a brand, even a generic brand, you need to stick with that brand. You may react to each slightly differently, and in thyroid treatment, consistency is very important. So never switch brands."

Lea replied: "All this no brand switching nonsense actually is propaganda from the Synthroid's makers which they have fed physicians. Many insurances will have a significantly higher co-pay for brands with generics. Levothyroxine is equivalent to Synthroid."

What are the animal studies and clincal trial history of Levothyroxine? Can someone help me find a website that discusses about this drug's clinical trial history along with the animal studies??? I've searched everywhere including the FDA website but cannot find those information!!

sal1970 replied: "Synthroid is the most prescribed brand of T4 in the United States. Synthroid was marketed in 1955, but was not FDA approved at that time as it was "generally regarded safe".[5] In the 1990s, in response to debate as to whether Synthroid was more effective than other levothyroxine preparations, (which ended up concluding that there was little difference between Synthroid and generic brands) all levothyroxine preparations were required to undergo the formal FDA approval process. Synthroid was approved by the FDA on 2002-07-24.[6] contact abbott labs, chicago, illinois as they now own the rights to synthroid."

Celia S replied: "There are several good sources you can go to find information on Levothyroxine: If you are interested in finding studies and research articles on Levothyroxine, a good place to start is PubMed, which is freely available through the US National Library of Medicine, at . At this site, you can type in "Levothyroxine" in the search box at the upper left. Also, you could choose the option "Advanced Search", which would allow you to narrow down by various criteria such as Full Text, Type of Article, or Human vs Animal, etc. For example, searching on the term "Levothyroxine" and choosing the options "Links to full text", "Clinical trials" and "English" returned 1074 articles. Adding in the option "Animal" narrows it to 73 articles. For a good reference in this area, I would also suggest MedlinePlus's Drugs and Supplements section, at If you searched on Levothyroxine you would find with information on how it is prescribed, side effects, and brand names. Hope this helps! Celia S graduate student in Information Sciences"

what is levothyroxine pills ,and what will it do to you? ok well i like using pills for no reason and dont tell me to stop becasue im askin you some that does not have to with anything so yea i grabbed some pills and its called levothyroxine ..what are those for and what can it do to you will it get you high ? and what are the side affects? plz help

auraraine replied: "Its to regulate your thyroid gland, no you don't get high from them, but you could seriously mess up your autoimmune system, and too much Thyroid hormone causes osteoporisis."

TKS replied: "They are prescribed for people that are hypothyroid. They won't get you high or help you feel good. Side effects are racing heart and palpitations/chest pain, if taken long term at a high dose you can lose your hair, build up pressure behind your eyes, and have osteoporosis problems."

Baker replied: "You "grabbed some pills"? Whose prescription did you steal? Levothyroxine are very important to the person they were prescribed for. They need to be taken daily for the rest of one's life. You won't like the side effects, trust me. Give them back."

I take levothyroxine 40 mcg, a it make sweat too much, can you help stop this excessive sweating? I have been on this med. for about 8 months, I was on Synthroid before that My dr. switched me because he doulbed me on Sun. and I got hot flashes. I need help with this excissive sweating issue.

David replied: "i was on 50 mcg. no sweat. went to 75 two weeks ago. never had an issue with sweat. are you sure this is the cause?"

will the Levothyroxine cause weight loss? just got it perscribed for hypothyroidism and i've struggled with my weight since i was a kid. will it help?

~Dante~ replied: "Hey, I'm sorry I can't answer your question but I wanted to know what kind of symptoms do you have with hypothyroidism. Did they discover the problem after just one blood test? I'm wondering if I have the same problem. Please email me - "

khuzukai1 replied: "I have been using it for the past 7 years and it has made a huge difference in my energy level. Hypothyroidism makes your metabolism sluggish and taking levothyroxine might keep your weight under control. You might loose a few pounds too depending on the dosage of the medicine."

Is there an ADD medicine that doesn't interact with Levothyroxine? I was diagnosed with ADD in the third grade, and was on Ritalin until tenth grade. I was diagnosed with Hypothyroidism and put on Levothyroxine. Shortly after starting the Levo I began getting killer migranes everyday, as a test my doctors took me off the Ritalin to see if that would help, I stopped having migranes but my GPA died. It took me five years to finish high school. I am now in college trying to study to be a Pre-School Teacher, my current GPA is 0.53 and I've been kicked out of my college for lack of performance. I was a stellar student when I was on ADD meds and I miss the focus I used to have. Since I can not be on Ritalin because of the drug interaction I'm wondering if with all the new drugs now on the market, is there one that wouldn't/shouldn't interact with my thyroid medication? Please, I'm getting desperate someone help me.

j_jdreaming replied: "Darling, go and ask a PROFESSIONAL, like a doctor or GP."

Tarkarri replied: "This is not a common drug interaction, so you may have to do a bit of trial and error. Have you tried dexamphetamine? That is what my daughter had for her ADD. I take thyroxine, but we haven't shared meds!"

Danielle G replied: "I am on strattera. That is not a stimulant. Im pretty sure that if there was an interaction with the ritalin then the chances of another adverse reaction with another stimulant are pretty high. Stratera is more like an anti depressant. There is also Welbutrin and some other blood pressure medications that are used as ADD medications. Your best bet is to go to a doctor and explain your situation. I would also google some stuff as well. Reaearch can be a very good benefit. I wish the best to you!"

Has anyone lost weight while taking levothyroxine for hypothyroidism? ? Just diagnosed with hyperthyroidism. Will start taking levothyroxine. I thought speeding up the thyroid would help lose weight.

lol @ u replied: "nah, but you can die"

Margaret replied: "If you were overweight because of the thyroid problem, correcting the hormone imbalance might help you take off the extra pounds. If your weight gain is due to overeating or inactivity, however, Thyroxine won't help. It's not a diet pill. If you are taking it and you lose your appetite, that means you should see your doctor because you are probably on too high a dose. That's what happened to me. I am now on the correct dosage and I have just as much trouble controlling my weight as I did before."

I just had my thyroid removed completely and I am on levothyroxine now.? My question is can you take vitamins or would that interfere with the medication. Also is there any food that interferes with this medication. I am suppose to have my levels checked in 5 weeks and already I realized a slight weight gain, I am not eating anything more then what I used to. Please help.

PrettyRN replied: "Talk to your doctor! Your thyroid meds are stuff to messing around with. As far as weight, that is normal. They will check your levels and adjust."

coridroz replied: "Iodine is something that your thyroid uses, but not many other meds that I know of. Your thyroid controls your weight (as well as many other things), so it would stand to reason that you might gain some weight if you had it removed. They will check the level of the medicine to see if it is doing its job. If you gain too much weight, or the levels aren't good, you may need it to be adjusted."

ProudRepublicanMommy replied: "It's best to take your meds by themselves in the morning about 2 hours before you eat breakfast. I take mine at night before I go to bed because thats is when it is easiest for me to remember. The big thing in consistency. If your meds are being absorbed the same way all the time then you should be good. As for you weight gain. It is possible that you are not on the proper dose yet. You have to wait 6 weeks after each does adjustment before you can measure it again. So it could take a couple of months before you get the right dose. When you find this your weight gain should level out. Good Luck!"

Meow replied: "You have had your thyroid gland removed & now cannot synthesize thyroid hormone naturally anymore. The weight gain is due to hypothyroidism (low thyroid hormone level), the most common side effect of thyroidectomy. Hypothyroidism leads to low basal metabolic rate, thus, the weight gain. The doctor did prescribe you Levothyroxine that is a synthetic form of thyroid hormone (T4). It does serve as thyroid hormone replacement therapy. However, there is no standard dosing & it has to be adjusted to each patient. This is done by observation of clinical signs & symptom as well as measuring the thyroid hormone level in the blood & changing the dose accordingly. So, you probably need a larger dose of levotyroxine. Don't worry, the doctor will definitely notice this & adjust the dose for you. But if it's bothering you so much, I suggest you call your doctor."

Nurse Angie R.N. replied: "Hello, Hope you are doing well since your surgery... As for the vitamin... that should be fine... go ahead and take a multi-vitamin. There is no documentation that it will interfere with the Levothyroxine. And there is no Food-Drug Interaction with Levothyroxine. So continue eating a healty diet, low in fat because you will have a tendency to put on weight. It is also best to take the medication in the morning before breakfast. if you take it later in the day, it may cause insomnia. Try to take it at the same time everyday. Weight gain is not an issue with the medication... Low thyroid levels tend to cause some weight gain... Now that your tyroid was removed, your body is not making any natural thyroid hormones. Thus your metabolism will slow and you will tend to put on weight and it will be harder to lose weight. Synthroid / Levothryoxine is a medication used to replace the thyroid hormone which you do not have anymore... You will be tested every so often and your dose may change depending on your blood work levels.... Watch for signs that you are getting too much medication. This is called Toxicity... and can be dangerous...You will be on this medication for life... so it is important to know these signs and to report them to your doctor. The important thing to monitor with this medication is for symptoms of too high thyroid levels.... 1. too fast heart rate : check your pulse at rest...if it is above 100, call your doctor and hold the medication until other directions are given. 2. chest pain / palpitations: report this to your doctor right away. 3. headache, nervousness, insomnia, sweating, shaking, or diarrhea 4. weight loss of more than 2 lbs in a week. These are all symptoms that your dose is too high and may need to be held for a few days or decreased the dose. Stop taking the medication and report it to you doctor right away. P.S. If you do not know how to take your pulse, email me and I will walk you through it. Good Luck to you!"

Imaka replied: "There are actually some foods that do interfere with the absorbtion of thyroid meds. And you are probably not yet on your full dose of thyroid medication. Most likely when it is all sorted out you will lose the weight you are gaining. Just continue to eat a healthy diet and get some exercise. I have been taking thyroid medication for many years, and after I started it was the first time in my life I actually could lose weight, so I think that will be ok when your dosage is sorted out. In the meantime here is a link that will tell you a little about the foods. Best of luck. This will all get sorted out soon."

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