Androsterone + Phentermine
Phentermine brand names: Adipex-P, Fastin, T Diet, Phentride, Obenix, and others.
We found no known interaction between Androsterone and Phentermine 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.
Androsterone and Phentermine
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 Phentermine and Androsterone 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.
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.
Androsterone 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.
Why No Interaction Is Listed for Phentermine
Interactions in our licensed database are recorded against drug classes, not just single drug names. Phentermine is filed under 2 classifications — stimulant drugs, oral drugs. Androsterone has documented interactions with 1 drug class — the most serious being androgens (minor) — and none of Phentermine’s classifications are among them.
Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.
Androsterone Does Interact With Other Medications
Androsterone has 9 minor known drug interactions in our database — Phentermine isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Androsterone
We haven’t checked that one against Androsterone yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Androsterone. Pick one to open its full report.
Androsterone in Pregnancy & Breastfeeding
When used orally or parenterally. 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
What Phentermine Is Prescribed For, and What Androsterone Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Phentermine is a prescription medicine with approved uses on its FDA label. Androsterone is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Phentermine is prescribed for: Phentermine is approved as a short-term addition to a weight-loss program — not a standalone treatment. It is used alongside reduced-calorie eating, increased physical activity, and behavior changes to help manage obesity in adults whose body mass index (BMI) is 30 kg/m² or higher, or 27 kg/m² or higher when other risk factors such as controlled high blood pressure, diabetes, or high cholesterol (hyperlipidemia) are also present. All available phentermine products — including Adipex-P, Lomaira, and various generic capsules and tablets — share this same FDA-approved use. Lomaira tablets are specifically dosed to be taken three times daily before meals, while other formulations are generally taken once daily.
Read the rest of what Phentermine is prescribed for
Treatment is intended to last only a few weeks.
Androsterone has been studied for:
-
Obesity studied, not established Androsterone has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Androsterone for obesity
Although there is interest in using oral androsterone for weight loss and reducing abdominal obesity, there is insufficient reliable information about the clinical effects of androsterone for these uses.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Phentermine on your own; if you are taking Androsterone for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
Questions About Androsterone or Phentermine
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Androsterone or Phentermine, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:
- Can You Take Phentermine With Berberine? ›
- Interaction Question: Omeprazole, Spironolactone And Phentermine ›
- Lomaira With Pristiq - Interaction Details ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Phentermine
This page covers Androsterone only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Phentermine page lists 61 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Ephedra (major), Peyote (major), Rauvolfia Vomitoria (major) and Sida Cordifolia (major).
By severity: 5 major · 43 moderate · 13 minor.
From our pharmacist’s overview on the Phentermine page
“Ephedra is the pairing I most want anyone taking phentermine (Adipex-P) to know about. Phentermine is itself a stimulant appetite suppressant that raises heart rate and blood pressure, and ephedra piles the same cardiovascular strain on top of it.”
Reviewed by 2 · Jul 18, 2026
Taking Androsterone as Part of a Dietary Supplement Product? Check It for Interactions
We hold 12 real supplement products containing Androsterone, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Androsterone. Even though Androsterone itself has no known interaction with Phentermine, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Androsterone and Phentermine 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.
#835 of 1,452 supplements looked up here in the last 7 days
#498 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 Androsterone reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Androsterone and Phentermine records this page draws on were last updated July 10, 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 Androsterone
What is Androsterone?
- Muscle building and athletic performance
- Boosting testosterone or androgen levels
- Supporting libido
- Bodybuilding 'prohormone' stacks
Androsterone is a natural androgenic steroid hormone made in the body, but supplement versions are classified as anabolic-androgenic steroids and are banned from U.S. dietary supplements under the DASCA law. There is no good evidence that taking it is safe or effective, and it carries the same hormone-related risks as other anabolic steroids. Avoid products that contain it, and talk to a pharmacist or doctor about safer, legal options.
Not applicable (a steroid hormone, not a plant) · Historically sold as oral capsules, tablets, and sublingual products in 'prohormone' supplements (now banned in the U.S.)
An interaction check asks whether these two react with each other — it does not ask whether Androsterone is a good idea for someone in your situation. Here is what our Androsterone record says about it on its own.
Androsterone: dosing
There is no established or recommended safe dose of androsterone as a supplement, and it is illegal to sell in U.S. dietary supplements. We do not provide dosing for it.If you see a product that lists androsterone or one of its alternate names on the label, treat it as a banned anabolic steroid rather than a normal supplement.
From our Androsterone monograph — the full record covers uses, side effects and every documented interaction.
About Phentermine
What Is Phentermine Used For?
Brand names: Adipex-P, Fastin, T Diet, Phentride, Obenix, Pbc Phentride, Pbw Phentride, Phentrol #3, Ionamin, Phentrol #6, Phentrol #2, Phentrol #5, Phentrol, Obermine, Phentermine, Suprenza
Phentermine is approved as a short-term addition to a weight-loss program — not a standalone treatment. It is used alongside reduced-calorie eating, increased physical activity, and behavior changes to help manage obesity in adults whose body mass index (BMI) is 30 kg/m² or higher, or 27 kg/m² or higher when other risk factors such as controlled high blood pressure, diabetes, or high cholesterol (hyperlipidemia) are also present.
All available phentermine products — including Adipex-P, Lomaira, and various generic capsules and tablets — share this same FDA-approved use. Lomaira tablets are specifically dosed to be taken three times daily before meals, while other formulations are generally taken once daily. Treatment is intended to last only a few weeks.
Other Drugs & Androsterone
Browse every other medication we’ve checked against Androsterone — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
9 interactions
No interaction 2,820 drugs checked — show the list
We also checked Androsterone against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Abemaciclib ›
- Ivermectin ›
- Losartan Potassium ›
- Acetaminophen ›
- Aspirin ›
- Metoprolol ›
- Rosuvastatin ›
- Escitalopram ›
- Rivaroxaban ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Methamphetamine ›
- Tirzepatide ›
- Tadalafil ›
- Ibuprofen ›
- Warfarin Sodium ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Amitriptyline ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Isotretinoin ›
- Lisinopril ›
- Amlodipine Besylate ›
- Methotrexate ›
- Bendamustine ›
- Amphetamine ›
- Bupropion ›
- Doxycycline ›
- Fluoxetine ›
- Azithromycin ›
- Acyclovir ›
- Pregabalin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Codeine ›
- Naproxen ›
- Quetiapine ›
- Clonazepam ›
- Omeprazole ›
- Duloxetine ›
- Letrozole ›
- Citalopram ›
- Methylene Blue ›
- Buspirone ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,820 medications checked with no known interaction — see the full Androsterone list.
Androsterone References
The 1 references that drive our Androsterone 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 Androsterone and Phentermine Together: Common Questions
Is it safe to take Androsterone with Phentermine?
Are Androsterone and Phentermine used for the same thing?
How was the Androsterone and Phentermine combination checked?
Does Androsterone interact with any other medications?
Does Phentermine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Phentermine and Androsterone?
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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.