Drug & supplement interaction

Cyanostane + Encorafenib

Encorafenib brand name: Braftovi.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Cyanostane and Encorafenib 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.

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Interaction report

Cyanostane and Encorafenib

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 Encorafenib and Cyanostane 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 Cyanostane at all — not against Encorafenib, 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.

Cyanostane safety at a glance

Cyanostane overall Avoid It is marketed as a designer anabolic agent with potential serious liver and hormonal harm; avoid.
Pregnancy Possibly Unsafe When used orally. Prohormones can be converted to active hormones in the body and cause adverse effects such as menstrual irregularities, infertility, hair loss... Read the full pregnancy detail
Breastfeeding Possibly Unsafe When used orally. Prohormones can be converted to active hormones in the body and cause adverse effects such as menstrual irregularities, infertility, hair loss... Read the full breastfeeding detail

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.

Still wondering about combining Encorafenib and Cyanostane? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Encorafenib’s Own FDA Label Lists

This is not an interaction — none of it involves Cyanostane. These are the most notable effects listed in the ADVERSE REACTIONS section of Encorafenib’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • A bowel blockage Worth acting on
  • Muscle weakness Worth acting on
  • Unsteadiness Worth acting on
  • A heart attack Worth acting on
  • Heart failure Worth acting on
  • An irregular heartbeat Worth acting on
  • Chest pain Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on
  • Raised blood pressure Worth acting on

Showing the 10 most notable of 43 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Encorafenib. Read the label on DailyMed › Cyanostane’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Cyanostane side to compare — that is a limit of the record, not a statement that Cyanostane has no side effects.

Special populations

Cyanostane in Pregnancy & Breastfeeding

Pregnancy And Lactation Possibly Unsafe

When used orally. Prohormones can be converted to active hormones in the body and cause adverse effects such as menstrual irregularities, infertility, hair loss, and acne. Prohormones have also been associated with hepatotoxicity and increased risk of cardiovascular disease. The U.S. Food and Drug Administration and other regulatory agencies warn that dietary supplements containing prohormones 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

Everything else you take

See Every Supplement That Interacts With Encorafenib

This page covers Cyanostane only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Encorafenib page lists 151 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Cesium (major) and Ephedra (major).

By severity: 8 major · 104 moderate · 39 minor.

From our pharmacist’s overview on the Encorafenib page

“Grapefruit is the first thing I would take off the table for anyone on encorafenib (Braftovi), a targeted cancer medicine, because it blocks the enzyme (CYP3A4) that clears the drug, pushing levels and side effects higher. St.”

Reviewed by 2 · Jul 18, 2026

Open the Encorafenib interaction page

One more smart check

Taking Cyanostane as Part of a Dietary Supplement Product? Check It for Interactions

We hold 11 real supplement products containing Cyanostane, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Cyanostane. Even though Cyanostane itself has no known interaction with Encorafenib, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Cyanostane and Encorafenib 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.

Supplement Cyanostane
Steady interest

#742 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Encorafenib
Steady interest

#2,285 of 2,830 medications looked up here in the last 7 days

29 days ago today

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 Cyanostane reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Cyanostane and Encorafenib 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.
Data structure & sourcing designed and verified by .
Supplement

About Cyanostane

What is Cyanostane?

  • Muscle building
  • Strength gains
  • Body recomposition
  • Athletic performance

Cyanostane (often sold as 'Cyanostane Rx') is not a true dietary supplement or herb — it is marketed as a so-called 'prohormone' or designer anabolic steroid product. These products are not approved as supplements, may be illegal, and carry real risks of liver and hormonal harm, so we cannot recommend their use.

Tablets, capsules (sold as a bodybuilding 'supplement')

An interaction check asks whether these two react with each other — it does not ask whether Cyanostane is a good idea for someone in your situation. Here is what our Cyanostane record says about it on its own.

Cyanostane: dosing

There is no established, safe, or recommended dose for Cyanostane because it is not an approved supplement or medicine. A health professional can help you understand the risks and check on your liver and hormone health.

From our Cyanostane monograph — the full record covers uses, side effects and every documented interaction.

Read the full Cyanostane monograph & all interactions
Medication

About Encorafenib

What Is Encorafenib Used For?

Brand name: Braftovi

Braftovi is used to treat cancers that have a specific change (mutation) in a gene called BRAF — specifically the V600E or V600K mutation, which must be confirmed by an FDA-authorized test before starting treatment. It is always used in combination with other medicines, never alone as standard therapy.

Braftovi (in combination with binimetinib) treats unresectable or metastatic melanoma with a BRAF V600E or V600K mutation. For metastatic colorectal cancer (mCRC) with a BRAF V600E mutation, Braftovi is used either with cetuximab and fluorouracil-based chemotherapy, or with cetuximab alone after prior therapy. Braftovi (in combination with binimetinib) also treats metastatic non-small cell lung cancer (NSCLC) with a BRAF V600E mutation.

Most-Reported Side Effects for Encorafenib

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 842 reports
Fatigue 770 reports
Diarrhea 634 reports
Fever 599 reports
Neoplasm progression 552 reports
See full Encorafenib drug information
Keep checking

Other Drugs & Cyanostane

Browse every other medication we’ve checked against Cyanostane — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
No interaction 2,829 drugs checked — show the list
Evidence & sources

Cyanostane References

The 1 references that drive our Cyanostane 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.

  1. 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.

Pharmacist Counseling Corner

Taking Cyanostane and Encorafenib Together: Common Questions

Is it safe to take Cyanostane with Encorafenib?
We do not list a known interaction between Cyanostane and Encorafenib. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Encorafenib interact with any supplements?
Yes. Encorafenib has documented interactions with 151 supplements in our database — Cyanostane is not one of them. The Encorafenib interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Encorafenib and Cyanostane?

Our pharmacists answer your medication & supplement questions — free.

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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.