Methasterone + Levothyroxine, Liothyronine
Levothyroxine, Liothyronine brand name: Armour Thyroid.
We found no known interaction between Methasterone and Levothyroxine, Liothyronine in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.
Methasterone and Levothyroxine, Liothyronine
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Levothyroxine, Liothyronine and Methasterone in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
Worth understanding: our licensed dataset holds no drug-interaction record for Methasterone at all — not against Levothyroxine, Liothyronine, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Methasterone safety at a glance
Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Methasterone in Pregnancy & Breastfeeding
When used orally. Anabolic androgenic steroids can disrupt the body's hormonal balance and cause various adverse effects including reduced fertility, hair loss, acne, and behavioral changes. Anabolic androgenic steroid use has also been associated with hepatotoxicity and increased risk for heart disease. The U.S. Food and Drug Administration and other regulatory agencies warn that dietary supplements containing anabolic steroids are dangerous. Avoid using.
DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center
See Every Supplement That Interacts With Levothyroxine, Liothyronine
This page covers Methasterone only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Levothyroxine, Liothyronine page lists 50 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Tiratricol (major), Acetyl-l-carnitine (moderate), Alpha-lipoic Acid (moderate) and Ascophyllum Nodosum (moderate).
By severity: 2 major · 39 moderate · 9 minor.
From our pharmacist’s overview on the Levothyroxine, Liothyronine page
“For anyone taking levothyroxine or liothyronine (Armour Thyroid), this list earns real caution, not just a passing glance. Most of these 50 ingredients pull in one of two directions.”
Reviewed by 2 · Jul 18, 2026
Where Methasterone and Levothyroxine, Liothyronine Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#874 of 1,452 supplements looked up here in the last 7 days
#50 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Methasterone reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Methasterone and Levothyroxine, Liothyronine records this page draws on were last updated June 22, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Methasterone
What is Methasterone?
- Muscle building
- Athletic performance
- Strength gains
- Body recomposition
Methasterone (also called methyldrostanolone or 'Superdrol') is a synthetic, oral anabolic steroid — not a dietary supplement, herb, or natural product. It is a controlled substance in the United States and has been linked to serious liver damage and other harms, so it should not be used outside of legitimate medical or research settings.
Synthetic compound (not derived from a plant) · Oral capsules or tablets (illicit/gray-market products)
An interaction check asks whether these two react with each other — it does not ask whether Methasterone is a good idea for someone in your situation. Here is what our Methasterone record says about it on its own.
Methasterone: dosing
There is no safe or medically established dose for methasterone. It is not an approved medicine or legitimate supplement, and we will not provide dosing guidance for it.Because of its serious risks and its status as a controlled substance, the safest amount is none.
From our Methasterone monograph — the full record covers uses, side effects and every documented interaction.
About Levothyroxine, Liothyronine
Most-Reported Side Effects for Levothyroxine, Liothyronine
From FAERS, the FDA’s public side-effect reporting system (15 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Methasterone
Browse every other medication we’ve checked against Methasterone — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Methasterone against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Metoprolol ›
- Aspirin ›
- Acetaminophen ›
- Rivaroxaban ›
- Rosuvastatin ›
- Abemaciclib ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Hydroxyurea ›
- Methamphetamine ›
- Valacyclovir ›
- Warfarin Sodium ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Amitriptyline ›
- Bupropion ›
- Methotrexate ›
- Bendamustine ›
- Isotretinoin ›
- Amphetamine ›
- Amlodipine Besylate ›
- Acyclovir ›
- Doxycycline ›
- Fluoxetine ›
- Pregabalin ›
- Lamotrigine ›
- Azithromycin ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Dextroamphetamine ›
- Clonazepam ›
- Quetiapine ›
- Methylene Blue ›
- Omeprazole ›
- Letrozole ›
- Naproxen ›
- Duloxetine ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Methasterone list.
Methasterone References
The 1 references that drive our Methasterone monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- Joseph JF, Parr MK. Synthetic androgens as designer supplements. Curr Neuropharmacol. 2015;13(1):89-100. PubMed
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Taking Methasterone and Levothyroxine, Liothyronine Together: Common Questions
Is it safe to take Methasterone with Levothyroxine, Liothyronine?
Does Levothyroxine, Liothyronine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Levothyroxine, Liothyronine and Methasterone?
Our pharmacists answer your medication & supplement questions — free.
This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.