The Role of Medication Types
Beyond dosage, now we need to think about whether you are on the best type of medication for your needs. There are a couple options here, but the ones I tend to recommend the most include:
- T4 by itself
- Natural desiccated thyroid (NDT)
- Or a combination of the two
T4 Medications
The most commonly prescribed category of medication contains T4. This is also commonly known as thyroxine. Brands of this medication include Synthroid, Levothyroxine, and Tirosint.
This is a really close approximation to what your body naturally does. The drawbacks is that it may be harder for your body to make T3 or T2 out of it.
I would argue, though, that before you feel the need to switch types, think about why your body isn’t converting T4 to T3 or T2. You may be able to work around it, but healing is likely better.
Natural Desiccated Thyroid (NDT)
This is also a good option. The top brands include Armour Thyroid, Adthyza, and NP Thyroid.
These are particularly good because they include T4, T3, and T2. The drawbacks are that some feel stimulated while on them. They can feel that their heart is racing, or feel themselves getting anxious, even when the dose is reasonable.
Not-Recommended Medications
Amongst all of the options, there are some that I do not recommend for those following thyroid removal surgery or trying to optimize for that. These include compounded synthetic thyroid, like T4/T3, T3 only, or over the counter.
The drawback surrounding compounded thyroid is that you don’t always know what you’re going to get. The cool thing is that they could select any potency, but what is meant to go in is not the same as what goes out (and, ultimately, what goes into your body).
There are some who advocate for T3-only medications. If you really get deep into how thyroid hormones work, you’d know that T3 is not the only thing that matters. Your body needs T4, T3, and T2 in complementary ways, so you really want to mimic what the body does when healthy.