Drug & supplement interaction

Cyanostane + Bepridil

Bepridil brand name: Vascor.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Cyanostane and Bepridil 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 Bepridil

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 Bepridil 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 Bepridil, 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 Bepridil and Cyanostane? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
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 Bepridil

This page covers Cyanostane only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bepridil 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 Coleus (major).

By severity: 9 major · 101 moderate · 41 minor.

From our pharmacist’s overview on the Bepridil page

“Bepridil (Vascor) is a calcium channel blocker for chest pain that can itself lengthen the heart's QT interval, so I would handle its supplement list with real care. Nine of the 151 ingredients on file carry a major rating, and most of the risk runs along two lines.”

Reviewed by 2 · Jul 18, 2026

Open the Bepridil 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 Bepridil, 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 Bepridil 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
Top half

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

29 days ago today
Medication Bepridil
Steady interest

#1,442 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 Bepridil 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
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
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Cyanostane against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Cyanostane list.

See the full Cyanostane interactions page
See every supplement checked against Bepridil, ranked by severity
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 Bepridil Together: Common Questions

Is it safe to take Cyanostane with Bepridil?
We do not list a known interaction between Cyanostane and Bepridil. 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 Bepridil interact with any supplements?
Yes. Bepridil has documented interactions with 151 supplements in our database — Cyanostane is not one of them. The Bepridil interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Cyanostane monograph Uses, safety profile, and every drug interaction in one place Bepridil supplement interactions Every supplement checked against Bepridil, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Bepridil 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.