Drug & supplement interaction

Trendione + Carisoprodol

Carisoprodol brand names: Soma, Rela.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Trendione and Carisoprodol 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

Trendione and Carisoprodol

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 Carisoprodol and Trendione 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 Trendione at all — not against Carisoprodol, 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.

Trendione safety at a glance

Trendione overall Avoid This is a synthetic anabolic steroid with serious safety concerns and no established safe use.
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 Carisoprodol and Trendione? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Carisoprodol’s Own FDA Label Lists

This is not an interaction — none of it involves Trendione. These are the most notable effects listed in the ADVERSE REACTIONS section of Carisoprodol’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. 4 of them are worth acting on rather than waiting out — marked below.

  • Unsteadiness Worth acting on
  • Fainting Worth acting on
  • Seizures Worth acting on
  • A low white blood cell count Worth acting on
  • Mood changes or irritability
  • Tremor or shakiness
  • Flushing
  • Anxiety or restlessness mentioned in 5.2% of FDA reports for Carisoprodol
  • Back pain
  • A fast or pounding heartbeat

Showing the 10 most notable of 18 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 Carisoprodol. Read the label on DailyMed › Where a percentage is shown, it is the share of 18,965 voluntary FDA FAERS reports for Carisoprodol that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Trendione’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Trendione side to compare — that is a limit of the record, not a statement that Trendione has no side effects.

Special populations

Trendione 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

From our Q&A

Questions About Trendione or Carisoprodol

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Trendione or Carisoprodol, 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:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Carisoprodol

This page covers Trendione only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Carisoprodol page lists 53 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Procaine (major), Adrafinil (moderate), Artichoke (moderate) and Bacopa (moderate).

By severity: 2 major · 38 moderate · 13 minor.

Open the Carisoprodol interaction page

How much people look this up

Where Trendione and Carisoprodol 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 Trendione
Steady interest

#1,183 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Carisoprodol
Top half

#889 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 Trendione reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Trendione and Carisoprodol 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 Trendione

What is Trendione?

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

Trendione (also marketed as estra-4,9,11-trien-3,17-dione) is a synthetic anabolic steroid sold as a so-called "prohormone" or "designer steroid," not a natural herb or vitamin. It is not a legitimate dietary supplement, has not been proven safe in humans, and is linked to potentially serious side effects, including liver harm. We strongly advise against using it and recommend talking with your doctor or pharmacist.

Not applicable; Trendione is a synthetic steroid compound, not a plant part · Capsules, tablets, oral powders (sold as a bodybuilding supplement)

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

Trendione: dosing

There is no established safe or effective dose for Trendione. Because it is a synthetic steroid rather than a studied medicine, no health authority has set a recommended amount.We do not provide dosing for this product because we do not recommend using it.

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

Read the full Trendione monograph & all interactions
Medication

About Carisoprodol

What Is Carisoprodol Used For?

Brand names: Soma, Rela

Carisoprodol tablets — sold under the brand name Soma, as well as generic versions — are used to relieve discomfort associated with acute, painful musculoskeletal conditions in adults. Think short-term muscle pain and stiffness from things like lower back injuries.

This medication is intended only for short-term use — up to two or three weeks. It has not been proven effective for longer-term use, and the muscle conditions it treats are generally short-lived by nature.

Most-Reported Side Effects for Carisoprodol

From FAERS, the FDA’s public side-effect reporting system (18,965 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Completed suicide 1,460 reports
Nausea 1,287 reports
Headache 1,099 reports
Anxiety 992 reports
Depression 989 reports
See full Carisoprodol drug information
Keep checking

Other Drugs & Trendione

Browse every other medication we’ve checked against Trendione — 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 Trendione 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 Trendione list.

See the full Trendione interactions page
See every supplement checked against Carisoprodol, ranked by severity
Evidence & sources

Trendione References

The 1 references that drive our Trendione 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 Trendione and Carisoprodol Together: Common Questions

Is it safe to take Trendione with Carisoprodol?
We do not list a known interaction between Trendione and Carisoprodol. 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 Carisoprodol interact with any supplements?
Yes. Carisoprodol has documented interactions with 53 supplements in our database — Trendione is not one of them. The Carisoprodol 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

Trendione monograph Uses, safety profile, and every drug interaction in one place Carisoprodol drug information The full plain-English guide to this medication Carisoprodol supplement interactions Every supplement checked against Carisoprodol, 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 Carisoprodol and Trendione?

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.