That is correct. How much do you take daily?
My Armour Thyroid bottle says it is 1 1/2 grain (90mg) . Each tablet contains: levothyroxine (T4) 57 mcg &
liothyronine (T3) 13.5 mcg
According to the info, one grain of Armour is about the equivalent of 75 mcg of Synthroid. If you have not been converting T4 to T3 very well, then the grain of Armour could actually have more effect than 75 mcg of Synthroid. So I think it is a good thing that you have started on a conservative dosage of Armour and your should plan to increase the dosage as necessary to relieve your symptoms. Symptom relief should be all important.
At one time I was taking 225 mcg of Synthroid, yet had lingering symptoms. After learning about the importance of FT3 on the Forum, I switched to Armour. Currently taking 2 1/2 grains of Armour, after moving up slowly. Already feel best ever.