A synthetic copy of a hormone you already make.
What levothyroxine is, and what tends to come up at the appointment.
Education and visit preparation. Ojava does not prescribe, dose, adjust medication, or decide whether anything here applies to you.
- TSH
- Free T4
- Free T3
- TPO antibodies
Education, and preparation. That is all.
This page explains what a class of medication is and which markers tend to come up in the conversation, so you can walk into your own appointment with better questions. Your clinician and your pharmacist decide everything else.
- No prescription, no dose, and no schedule.
- No advice to start, stop or change anything.
- No judgement about whether a medication is working for you.
What the class is
A synthetic copy ofa hormone you make
Levothyroxine is a manufactured version of thyroxine, the hormone a thyroid produces. That makes the conversation around it unusually specific: the panel is short, the vocabulary is narrow, and knowing which four letters mean what removes most of the confusion.
Drug class
A thyroid hormone. Chemically it is the same T4 the thyroid produces, made synthetically, and it is sold under several product names as well as generically.
What it does
It supplies T4, which the body converts to the more active T3. That conversion happens outside the thyroid, which is part of why the panel measures more than one thing.
Approved uses
Hypothyroidism, meaning an underactive thyroid, and some related conditions. The current label for the exact product is the authority on that, not this page.
What comes up
The markers peopletend to bring along
These are the results that often sit near this class of medication in a conversation. Ojava keeps whichever of them are in your own record together, in date order, so the question you ask is about your history rather than a general one.
TSH
Thyroid-stimulating hormone, produced by the pituitary rather than the thyroid. It is usually the first line on a thyroid panel and the one most conversations start from.
Free T4
The unbound thyroxine circulating in the blood. It measures a different thing than TSH does, which is why the two are usually read together.
Free T3
The unbound, more active hormone the body converts T4 into. Not on every panel, and a reasonable thing to ask whether yours includes.
TPO antibodies
Antibodies against an enzyme the thyroid uses. They describe something about the underlying picture rather than the current hormone level.
Thyroglobulin antibodies
Another antibody sometimes measured alongside TPO. It appears in some panels and not others, which is worth knowing before you read a result.
Symptom notes
Energy, temperature and weight are the things people usually notice. Written down with dates, they give the conversation something concrete to work from.
No target value, no reference band and no reading of whether a medication is working appears on this page. Ojava organizes what you already have and explains what a marker measures. Interpreting your own results is a conversation for your clinician.
Before the visit
Walk in withthe specific question
A good appointment usually turns on one precise question. These are the ones worth having written down, and the record that makes each of them specific.
- What is this medication meant to do for someone in my situation?
- Which lines on my thyroid panel are you actually watching?
- How does timing around food and other medications work?
- Are there interactions with anything else on my list, including supplements?
- How often would you want the panel repeated?
- What would make you want to revisit this decision?
What your record already holds
- Your medication list, with the dates you noted for each entry.
- Every thyroid panel you accepted, in date order rather than as separate PDFs.
- TSH and free T4 lined up chronologically, so a change is visible as a change.
- Your own notes about energy, temperature and weight, kept next to the timeline.
Sources
What this page stands on.
Official labelling and professional-society guidance, linked so you can read the original rather than take a summary on trust.
DailyMed Drug Labeling
U.S. National Library of Medicine, 2026
Supports official label-backed medication education. Label mentions are not the same as patient-specific safety clearance.
Drug Interactions: What You Should Know
U.S. Food and Drug Administration, 2013
Supports consumer education around drug-drug, drug-food, supplement, and condition interactions. It does not make Ojava a comprehensive interaction checker.
Mixing Medications and Dietary Supplements Can Endanger Your Health
U.S. Food and Drug Administration, 2022
Supports asking a clinician or pharmacist about supplement and medication combinations instead of treating a missing match as safe.
American Geriatrics Society 2023 updated AGS Beers Criteria for potentially inappropriate medication use in older adults
American Geriatrics Society Beers Criteria Update Expert Panel, 2023
Supports medication-review caution and the idea that certain medication risks depend on age, condition, kidney function, and drug-drug context. It is not a patient-specific safety clearance.
STOPP/START criteria for potentially inappropriate prescribing in older people: version 3
O Mahony, Cherubini, Guiteras, et al., 2023
Supports older-adult medication-review prompts around potentially inappropriate prescriptions and possible prescribing omissions. Ojava does not apply the criteria or classify a patient-specific issue.
Deprescribing Guidelines and Algorithms
Deprescribing.org, 2026
Supports deprescribing conversation preparation with a clinician or pharmacist. Ojava does not stop, taper, substitute, or recommend medication changes.
DailyMed Levothyroxine Sodium Drug Labels
DailyMed, U.S. National Library of Medicine, 2026
Supports official-label medication education for levothyroxine. It does not clear patient-specific safety, dosing, or thyroid targets.
Guidelines for the Treatment of Hypothyroidism
Jonklaas, Bianco, Bauer, et al., 2014
Supports thyroid-treatment education and clinician-led lab interpretation. Ojava does not diagnose thyroid disease or adjust levothyroxine.
Bring the record,not just the question
Keep your levothyroxine history, your own results and your notes in one place, and the next appointment starts from what actually happened rather than from memory.
Your list, your notes
What you take and what you have noticed, held together with the results and documents that sit near them.
In date order
Results line up chronologically, so a question about a change is asked about a real change rather than an impression.
The decision stays with care
Prescribing, dosing, refills, and any change at all remain with your licensed clinician or pharmacist.
This is general educational information about a class of medication, not medical advice, a prescription, or a recommendation. Ojava does not diagnose, prescribe, dose, adjust medication, order labs, or replace your clinician.