I have been in contact with some Armour users who take as much as 7.5 or 8 grains daily, and say they do great on it.
I cannot help but wonder if this could be explained by the reformulation of Armour a few years back (impaired absorption due to increased cellulose content, so they needed to take more to get the same effect)? A few years ago, before Armour was reformulated, I'd never hear of anyone taking more than 5 grains daily...
I have had spotty success with Armour (to put it mildly) since going on it in 2011. I have done great on some batches, and poorly on others. However, in the past year, that has been true for Erfa as well. Some batches are great, others not so great...some cause terrible itching (like an allergic reaction, almost), while others seem fine. It's all very confusing. I have read some posts saying that the 100 ct bottles seem better than the 500 ct bottles, while others say that the smaller pills (30 and 60 mg) are less problematic than the 125 mg pills...personally, I cannot see any pattern at all, just that some batches work better than others, for no apparent reason.
I am not sure what happened to Erfa (I only know what I read on STTM), but Armour was reformulated about six years ago, and most of the dextrose was replaced with cellulose. The question I ask myself is: everyone seems to agree cellulose impairs thyroid hormone absorption. The question is: would it then be enough to raise the daily dosage of Armour, to get the same effect that you used to, and to alleviate all hypo symptoms? Or does the addition of cellulose mean that, no matter how much you take, absorption will always be impaired?
I also wonder if cellulose is especially problematic when it comes to thyroid hormone medication? I am asking as it seems that cellulose is a very common filler in drugs and, if it led to impaired absorption of for instance blood pressure and heart medication, I am sure we would have heard about it, as that could have potentially fatal consequences...