This is the first time EVER that I have forgotten my medication. My last increase to 100mcg my was about 6 weeks ago, since 3 weeks ago my voice has almost come back to normal! (For those who don’t know my main symptom was a very very hoarse voice)
Today at work about 4pm I noticed my voice was going croaky again and also the feeling of being slightly strangled had returned?
When I got home I checked and my pill was on the side so I knew I hadn’t taken it.
My question is would missing one pill cause symptoms that quickly?! I can assure you it isn’t anxiety or me imagining it, I honestly didn’t realise I had forgotten it until I came home?! It just seems too much of a coincidence for it not to be that?
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Written by
LadyWard
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No that one pill could do it. My main symptom is sore throat and croaky voice. It changes throughout the day and daily. It cleared for just over a week when my medication was obviously spot on. Unfortunately the endo had reduced my levo so once the reduction kicked in the voice came back.
I've put it up myself as I had a store! She reduced it from 100mcg to 50mcg when I added T3. I knew it was too much of a reduction but had to comply...and in the meantime I started building up a stash of levo!
If you take Levo only, you could take it now, or take it with your dose tomorrow.
Some people find taking Levo at a time they aren't used to can make it difficult to get to sleep, so it is up to you whether you take it now or tomorrow. Other people find taking Levo at night actually helps them to get to sleep. It's trial and error and everyone has to do their own experiments.
If you take T3 as well as Levo that can be more problematic if you change the time you take the T3, so you might want to just forget the missed dose. Again, it is up to you.
In any case, the worst that would happen to you if changing the time you take your thyroid meds as a one-off is that your heart might speed up for a few hours, and you might find that you get a bit sweaty. It would last for, at most, a few hours then will wear off. It won't do any long-term harm.
Bear in mind that some doctors prescribe Levo to be taken once a week. It is sometimes done when people are very bad at remembering to take it. I wouldn't fancy doing this myself, but I just mentioned it because it clearly isn't harmful.
Helvella has mentioned that the standard dose of Levo often given in testing new products or new formulations of Levo products is 600mcg Levo which is given to healthy volunteers.
Having read many posts over the years, it seems that some people would hardly notice missing a pill, whereas others would notice within, at most, hours.
From the other direction, we have seen some who notice even a small dose (25 micrograms, for example) within ten minutes. And others who could take 100 a day for a week and hardly see any difference.
Each time I have an increase I don’t notice any difference, to be honest I was starting to wonder if it is working, but then today with my voice, weird neck feeling and actually feeling pretty tired it made me realise I much better I do feel. You just don’t notice at the time as it’s so gradual
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How long before you notice missed levothyroxine doses? 
What is MCV in bloods please ? 
Missed dosage
Trying for a baby
