Stenabolic + Palbociclib
Palbociclib brand name: Ibrance.
We found no known interaction between Stenabolic and Palbociclib 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.
Stenabolic and Palbociclib
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 Palbociclib and Stenabolic 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 Stenabolic at all — not against Palbociclib, 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.
Stenabolic 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.
Stenabolic in Pregnancy & Breastfeeding
When used orally or parenterally. Some metabolic modulators have been found to cause cancer in animals. Their safety in humans has not been tested. 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 Palbociclib
This page covers Stenabolic only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Palbociclib page lists 185 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Active Hexose Correlated Compound (ahcc) (moderate).
By severity: 3 major · 145 moderate · 37 minor.
From our pharmacist’s overview on the Palbociclib page
“Three of the 185 supplement interactions on file for palbociclib (Ibrance), a targeted breast cancer therapy, are rated major, and those three deserve your attention first. Grapefruit, St.”
Reviewed by 2 · Jul 18, 2026
Taking Stenabolic as Part of a Dietary Supplement Product? Check It for Interactions
We hold 8 real supplement products containing Stenabolic, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Stenabolic. Even though Stenabolic itself has no known interaction with Palbociclib, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Stenabolic and Palbociclib 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.
#888 of 1,452 supplements looked up here in the last 7 days
#774 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 Stenabolic reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Stenabolic and Palbociclib 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 Stenabolic
What is Stenabolic?
- Endurance and stamina
- Fat loss
- Bodybuilding and athletic performance
- Boosting metabolism
Stenabolic (also called SR9009) is an experimental research chemical, not a true dietary supplement, herb, or approved drug. It is sold online for fat loss and endurance, but it has never been tested for safety or effectiveness in humans, and it is banned in sports. Because the risks are unknown and product quality is unreliable, we do not recommend using it.
Synthetic compound (not from a plant) · Capsules, liquid solutions, powders
An interaction check asks whether these two react with each other — it does not ask whether Stenabolic is a good idea for someone in your situation. Here is what our Stenabolic record says about it on its own.
Stenabolic: dosing
There is no established or approved dose for Stenabolic because it has never been tested in proper human studies. Doses suggested on websites and forums are not based on safety research.We cannot recommend a dose. Given the lack of safety data, the risk of contaminated products, and its banned status in sports, the safest choice is not to use it at all.
From our Stenabolic monograph — the full record covers uses, side effects and every documented interaction.
About Palbociclib
What Is Palbociclib Used For?
Brand name: Ibrance
Palbociclib (brand name Ibrance) is used to treat adults with hormone receptor (HR)-positive, HER2-negative advanced or metastatic breast cancer. It is always given in combination with other medicines — either an aromatase inhibitor as a first hormonal treatment, or with fulvestrant after the cancer has progressed on prior hormonal therapy. It is also used with inavolisib and fulvestrant for a specific subtype (PIK3CA-mutated, endocrine-resistant) of this cancer confirmed by an FDA-authorized test.
Ibrance is also approved in combination with trastuzumab (with or without pertuzumab) and endocrine therapy for maintenance treatment of adults with HR-positive, HER2-positive locally advanced or metastatic breast cancer, following initial induction treatment.
Most-Reported Side Effects for Palbociclib
From FAERS, the FDA’s public side-effect reporting system (94,825 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Stenabolic
Browse every other medication we’ve checked against Stenabolic — 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 Stenabolic against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Abemaciclib ›
- Ivermectin ›
- Testosterone ›
- Acetaminophen ›
- Losartan Potassium ›
- Aspirin ›
- Rosuvastatin ›
- Metoprolol ›
- Clopidogrel ›
- Escitalopram ›
- Rivaroxaban ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Warfarin Sodium ›
- Tadalafil ›
- Valacyclovir ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Amitriptyline ›
- Propranolol ›
- Metformin ›
- Lisdexamfetamine ›
- Isotretinoin ›
- Amoxicillin ›
- Methotrexate ›
- Lisinopril ›
- Amlodipine Besylate ›
- Amphetamine ›
- Bendamustine ›
- Bupropion ›
- Fluoxetine ›
- Doxycycline ›
- Azithromycin ›
- Pregabalin ›
- Acyclovir ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Codeine ›
- Naproxen ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Duloxetine ›
- Letrozole ›
- Methylene Blue ›
- Citalopram ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Stenabolic list.
Stenabolic References
The 1 references that drive our Stenabolic 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.
- What Should Tested Athletes Know About GW1516? Education, Spirit of Sport. U.S. Anti-Doping Agency (USADA). September 24, 2019. Available at: https://www.usada.org/spirit-of-sport/education/what-should-athletes-know-gw1516/
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 Stenabolic and Palbociclib Together: Common Questions
Is it safe to take Stenabolic with Palbociclib?
Does Palbociclib interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Keep Exploring
Still Have a Question About Palbociclib and Stenabolic?
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.