Yes, increase your Armour Thyroid dose
Your current dose of 30 mg daily is inadequate—both your elevated TSH (5.16) and low free T4 (0.6) confirm you are undertreated and require a dose increase. 1
Why You Need a Dose Increase
Your laboratory values clearly indicate insufficient thyroid hormone replacement:
- TSH of 5.16 is above the normal range (upper limit 4.12 mIU/L), indicating your body is signaling for more thyroid hormone 2
- Free T4 of 0.6 is frankly low, confirming inadequate circulating thyroid hormone
- You're on the starting dose (30 mg), which is rarely sufficient for maintenance therapy 1
The FDA labeling for Armour Thyroid explicitly states that most patients require 60-120 mg daily for maintenance, and your current 30 mg dose is merely the typical starting point 1.
Recommended Dosing Strategy
Increase by 15 mg increments every 2-3 weeks until your TSH normalizes and symptoms resolve 1:
- Move to 45 mg daily now
- Recheck TSH and free T4 in 4-8 weeks 2
- Continue titrating upward by 15 mg increments until TSH is in the normal range (ideally 0.5-2.5 mIU/L) 2, 3
- Most patients ultimately need 60-120 mg daily 1
Important Monitoring Considerations
Reassess thyroid function 4-8 weeks after each dose adjustment 2. The guidelines emphasize that TSH is the most reliable therapeutic endpoint for primary hypothyroidism 2. Your free T4 should normalize when TSH reaches the target range.
Critical Safety Caveat
If you have coronary heart disease, are over 50-60 years old, or have long-standing severe hypothyroidism, smaller increments (even 7.5-15 mg) with closer monitoring for anginal symptoms are warranted 2, 1. The appearance of chest pain or angina mandates dose reduction 1.
Why Not Wait?
Some might suggest repeating labs before adjusting, but with both TSH elevated AND free T4 frankly low, this represents clear biochemical hypothyroidism requiring treatment intensification 4, 3. The study showing that incidentally elevated TSH sometimes normalizes without intervention 4 applies to patients with normal free T4—not your situation where both parameters are abnormal.
Adequate therapy results in normal TSH and T4 levels after 2-3 weeks of appropriate dosing 1. Your current regimen is not achieving this, necessitating dose escalation.