Drug & supplement interaction

Collagen Peptides + Flurandrenolide

Flurandrenolide brand name: Cordran.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Collagen Peptides and Flurandrenolide 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

Collagen Peptides and Flurandrenolide

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 Flurandrenolide and Collagen Peptides 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 Collagen Peptides at all — not against Flurandrenolide, 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.

Collagen Peptides safety at a glance

Collagen Peptides overall Generally safe Generally well tolerated as a dietary protein, with mild and uncommon side effects.
Pregnancy Use caution Not well studied in pregnancy, so check with your doctor before using.
Breastfeeding Use caution Little safety data exists during breastfeeding, so caution is advised.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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

What Collagen Peptides Itself Has Been Linked To

This is not an interaction — nothing below involves Flurandrenolide. It is the side-effect record for Collagen Peptides on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Collagen Peptides, this list is the first place to look.

  • Bloating or gas / Stomach upset / Diarrhea / Nausea Additional detail

    “Orally, collagen peptides may cause nausea, dyspepsia, diarrhea, and flatulence, but these adverse effects are rare.”

    Collagen Peptides · Natural Medicines adverse-effect record, reported in diarrhea.

    2 sources cited
    1. 101622. Trc T, Bohmová J. Efficacy and tolerance of enzymatic hydrolysed collagen (EHC) vs. glucosamine sulphate (GS) in the treatment of knee osteoarthritis (KOA). Int Orthop. 2011;35(3):341-8. PubMed
    2. 104639. Evans M, Lewis ED, Zakaria N, Pelipyagina T, Guthrie N. A randomized, triple-blind, placebo-controlled, parallel study to evaluate the efficacy of a freshwater marine collagen on skin wrinkles and elasticity. J Cosmet Dermatol. 2021;20(3):825-834. PubMed

Everything above comes from the Natural Medicines adverse-effect record for Collagen Peptides — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Flurandrenolide’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Flurandrenolide column appears here.

From our Q&A

Questions About Collagen Peptides or Flurandrenolide

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

This page covers Collagen Peptides only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Flurandrenolide page lists 3 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Dimethylsulfoxide (dmso) (moderate), Turpentine Oil (moderate) and Alchemilla (minor).

By severity: 2 moderate · 1 minor.

From our pharmacist’s overview on the Flurandrenolide page

“DMSO is the risk to know about first. Applied to the same skin as flurandrenolide (Cordran), a prescription steroid cream for inflamed, itchy conditions like eczema and psoriasis, DMSO may pull more of the drug through the skin, amplifying its effects and its side effects alike.”

Reviewed by 2 · Jul 18, 2026

Open the Flurandrenolide interaction page

One more smart check

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

We hold 887 real supplement products containing Collagen Peptides, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Collagen Peptides. Even though Collagen Peptides itself has no known interaction with Flurandrenolide, 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 Collagen Peptides and Flurandrenolide 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 Collagen Peptides
Top 25%

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

29 days ago today
Medication Flurandrenolide
Top half

#1,239 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 Collagen Peptides reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Collagen Peptides and Flurandrenolide records this page draws on were last updated July 11, 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 Collagen Peptides

What is Collagen Peptides?

Collagen Peptides
  • Skin health and wrinkles
  • Joint pain and osteoarthritis
  • Bone health
  • Hair and nail strength
  • Muscle and exercise recovery

Collagen peptides are a well-absorbed form of protein that may modestly improve skin elasticity and joint comfort for some people, though evidence is still developing and results vary. They are generally well tolerated, but talk to your pharmacist or doctor before starting, especially if you are pregnant, breastfeeding, or have allergies to the animal source.

Connective tissue, skin, bones, and scales of animals (cattle, pigs, fish, or chicken) · Powder, capsules, tablets, gummies, and ready-to-drink beverages

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

Collagen Peptides: dosing

There is no official standardized dose for collagen peptides. Amounts used in studies vary widely depending on the product and goal.The best approach is to follow the directions on the product label.

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

Read the full Collagen Peptides monograph & all interactions
Medication

About Flurandrenolide Topical

What Is Flurandrenolide Topical Used For?

Brand name: Cordran

Flurandrenolide topical is used to treat the inflammation and itching that come with corticosteroid-responsive dermatoses — a broad term for skin conditions that respond to steroid treatment, such as eczema, psoriasis, and allergic skin reactions.

Cordran is used to relieve these inflammatory and itchy skin manifestations. Occlusive dressings (airtight coverings over the medication) may be used with Cordran for hard-to-treat conditions like psoriasis.

Most-Reported Side Effects for Flurandrenolide

From FAERS, the FDA’s public side-effect reporting system (329 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Pruritus 31 reports
Nausea 20 reports
Fatigue 18 reports
Headache 18 reports
Rash 18 reports
See full Flurandrenolide Topical drug information
Keep checking

Other Drugs & Collagen Peptides

Browse every other medication we’ve checked against Collagen Peptides — 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

Collagen Peptides References

The 2 references that drive our Collagen Peptides 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. Trc T, Bohmová J. Efficacy and tolerance of enzymatic hydrolysed collagen (EHC) vs. glucosamine sulphate (GS) in the treatment of knee osteoarthritis (KOA). Int Orthop. 2011;35(3):341-8. PubMed
  2. Evans M, Lewis ED, Zakaria N, Pelipyagina T, Guthrie N. A randomized, triple-blind, placebo-controlled, parallel study to evaluate the efficacy of a freshwater marine collagen on skin wrinkles and elasticity. J Cosmet Dermatol. 2021;20(3):825-834. 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 Collagen Peptides and Flurandrenolide Together: Common Questions

Is it safe to take Collagen Peptides with Flurandrenolide?
We do not list a known interaction between Collagen Peptides and Flurandrenolide. 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 Flurandrenolide interact with any supplements?
Yes. Flurandrenolide has documented interactions with 3 supplements in our database — Collagen Peptides is not one of them. The Flurandrenolide 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 Flurandrenolide and Collagen Peptides?

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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.