Log your dose, TSH, and weight. myTSH projects the trajectory of your TSH over the coming weeks — so you walk into your next appointment informed.
A projection tool — not medical advice. myTSH never tells you to change your dose. Any change is a decision for you and your doctor.
Your levothyroxine dose, your TSH lab results, and your weight — entered in seconds, whenever you have them.
myTSH models how levothyroxine builds up over several weeks and projects where your TSH is heading toward your target.
Walk in with a clear picture. Your doctor decides any dose change — myTSH just helps you both see the trajectory.
Levothyroxine doesn't act overnight — it accumulates in your body over weeks. That's why a dose change today shows up in your labs much later. myTSH does the multi-week math for you:
Personalised: It learns your response from your own logged history.
Specific: It projects the weekly dose — at fractional resolution — toward your target TSH.
On your terms: It only answers a 'what-if' you ask — it never pushes a change.
Illustrative. Always confirm any change with your doctor.
Your entries are protected and visible only to you. We never sell your data — there's no ad business here.
Take your full history with you in one click, or delete your account and everything in it. No emails, no friction.
You choose what each piece of data is used for. Nothing is shared without you saying yes, first.