I have been on Armour and Erfa alternatively for the past year. I was first put on Armour, as my doctor said she did not know of anyone having problems with the reformulated Armour. I was prescribed 15, 30, 60, 90 and 120 mg pills and gradually worked my way up to 300 mg daily. I felt great at that dosage.
During the first two months on Armour, I lost 8 kilograms of fluid (I don't know how many times a day I had to run to the bathroom during those weeks...).
Then I was prescribed 300 mg of Armour, and found it much less effective all of a sudden. I read somewhere that apparently the lower strength pills were reformulated a second time (decrease in cellulose and increase in dextrose) some time in the Autumn of 2010, so apparently that was what I first got (all had date of expiry 11/12 or 12/12 so they should have been manufactured in late 2010). When I switched to the larger pills, I felt worse. I don't know if there is any truth to the rumour that only some Armour pills were re-reformulated in late 2010, but my own experience seems to corroborate that statement.
However, I don't find Erfa to be nearly as effective. On 300 mg of Erfa, I feel more dead than alive; I have problems getting up in the morning, problems concentrating, I feel a distinct decrease in overall energy levels. So I am thinking about going back to Armour next time I see my doctor, but this time ask for lower strength pills and combine them, rather than taking one big pill a day.
Has anyone else experienced this; that is, feeling better on Armour than on Erfa, although Erfa is described by many as the new panacea? Also, has anyone else had more luck with the lower strength pills than the bigger ones?
Where I live, only Erfa and Armour are available in pharmacies, so unfortunately NP Thyroid is not an option. Nature-Throid and Westhroid are also said to have been reformulated and hence less effective. There is always Thyroid-S from Thailand, which is supposedly very good, but a colleague of mine recently had a shipment of Thyroid-S confiscated by customs, so I'd prefer not to go down that road. This disease is debilitating enough without having to worry about drugs being confiscated and problems with customs...I'd simply hate to worry every time I place an order that the shipment won't arrive.