You have been on Levothyroxine 75 mcg for 3 months and your latest
TSH is 5 mIU/L.
For a treated hypothyroid patient:
• Ideal target TSH: 0.5 – 2.5
• TSH of 5 suggests mild under-replacement
In a 34-year-old male (assuming no heart disease), this usually means the dose is slightly low.
However, increasing from 75 mcg to 100 mcg is a 25 mcg jump, which is acceptable in many adults — but only if:
• You are taking the medicine correctly
• The test was done after at least 6 weeks of stable dosing
• No missed doses
If everything was proper, dose escalation is reasonable.
Next Steps
✔ Confirm correct intake:
• Empty stomach
• 30–45 min before food
• No tea/coffee immediately
• No iron/
calcium within 4 hours
✔ If compliance is correct → Increase to 100 mcg daily
✔ Repeat
TSH after 6 weeks
✔ Monitor symptoms:
• Palpitations
• Anxiety
• Tremors
• Excess sweating
If these occur, dose may be slightly high.
Health Tips
✔ Take medicine at the same time daily
✔ Do not alternate doses unless prescribed
✔ Maintain consistent lab timing (morning fasting preferred)
✔ Do not check
TSH too early after dose change
If you share your weight and whether you have symptoms like fatigue, weight gain, or hair fall, I can guide you more precisely on ideal dose calculation.
If you’d like a structured
thyroid dose review with interpretation of your full report, you can book an online consultation so we can optimise your treatment safely and accurately.