Drug & supplement interaction

Cetylated Fatty Acids (cfas) + Riociguat

Riociguat brand name: Adempas.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Cetylated Fatty Acids (cfas) and Riociguat 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

Cetylated Fatty Acids (cfas) and Riociguat

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 Riociguat and Cetylated Fatty Acids (cfas) 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 Cetylated Fatty Acids (cfas) at all — not against Riociguat, 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.

Cetylated Fatty Acids (cfas) safety at a glance

Cetylated Fatty Ac... overall Use caution Generally well tolerated in short-term studies, but long-term safety is not well established.
Pregnancy Avoid No reliable safety data in pregnancy, so it is best avoided.
Breastfeeding Avoid No reliable safety data while breastfeeding, so avoid unless your doctor advises otherwise.

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

Still wondering about combining Riociguat and Cetylated Fatty Acids (cfas)? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Riociguat’s Own FDA Label Lists

This is not an interaction — none of it involves Cetylated Fatty Acids (cfas). These are the most notable effects listed in the ADVERSE REACTIONS section of Riociguat’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. 3 of them are worth acting on rather than waiting out — marked below.

  • Trouble swallowing Worth acting on
  • Anemia Worth acting on
  • Bleeding or bruising Worth acting on
  • Heartburn
  • Bloating or gas
  • A stuffy or runny nose
  • A fast or pounding heartbeat
  • Low blood pressure
  • Stomach upset
  • Constipation

Showing the 10 most notable of 16 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 Riociguat. Read the label on DailyMed › Cetylated Fatty Acids (cfas)’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Cetylated Fatty Acids (cfas) side to compare — that is a limit of the record, not a statement that Cetylated Fatty Acids (cfas) has no side effects.

Everything else you take

See Every Supplement That Interacts With Riociguat

This page covers Cetylated Fatty Acids (cfas) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Riociguat page lists 230 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Grapefruit (major) and St. John's Wort (major).

By severity: 6 major · 187 moderate · 37 minor.

From our pharmacist’s overview on the Riociguat page

“Riociguat (Adempas) works by relaxing the blood vessels in your lungs, which also lowers blood pressure, so I read this list of 230 supplements and herbs with real concern, and the six rated major are what to understand first. Grapefruit can push riociguat levels up and intensify its effect, while St.”

Reviewed by 2 · Jul 18, 2026

Open the Riociguat interaction page

How much people look this up

Where Cetylated Fatty Acids (cfas) and Riociguat 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 Cetylated Fatty Acids (cfas)
Steady interest

#1,410 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Riociguat
Steady interest

#1,428 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. Cetylated Fatty Acids (cfas) is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Cetylated Fatty Acids (cfas) reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Cetylated Fatty Acids (cfas) and Riociguat 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 Cetylated Fatty Acids (cfas)

What is Cetylated Fatty Acids (cfas)?

  • Osteoarthritis joint pain
  • Joint stiffness and mobility
  • Muscle and joint soreness
  • General joint lubrication support

Cetylated fatty acids (CFAs) are a blend of specially modified fats used in topical creams and oral supplements, mainly marketed for joint pain and stiffness. A handful of small studies suggest possible short-term relief in knee osteoarthritis, but overall the evidence is limited and many trials were industry-funded. Talk with your pharmacist or doctor before trying them, especially if you have other health conditions.

Not a plant product; a manufactured mixture of esterified (cetylated) fatty acids · Oral softgels/capsules, topical creams and gels

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

Cetylated Fatty Acids (cfas): dosing

There is no official or standardized dose for cetylated fatty acids. Products vary widely in their strength and ingredients.The best approach is to follow the directions on the product label and not exceed the recommended amount.

From our Cetylated Fatty Acids (cfas) monograph — the full record covers uses, side effects and every documented interaction.

Read the full Cetylated Fatty Acids (cfas) monograph & all interactions
Medication

About Riociguat

What Is Riociguat Used For?

Brand name: Adempas

Riociguat — sold as Adempas and under the generic name Riociguat — is used to treat adults with two conditions that cause dangerously high blood pressure in the arteries of the lungs.

  • Chronic Thromboembolic Pulmonary Hypertension (CTEPH): Used after surgical treatment, or when surgery is not an option, to improve exercise capacity and functional class.
  • Pulmonary Arterial Hypertension (PAH): Used to improve exercise capacity, functional class, and to delay the condition from getting worse. It can be used alone or combined with certain other PAH medicines.

Most-Reported Side Effects for Riociguat

From FAERS, the FDA’s public side-effect reporting system (32,415 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 5,718 reports
Headache 4,513 reports
Nausea 3,769 reports
Diarrhea 3,533 reports
Dizziness 3,522 reports
See full Riociguat drug information
Keep checking

Other Drugs & Cetylated Fatty Acids (cfas)

Browse every other medication we’ve checked against Cetylated Fatty Acids (cfas) — 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

Cetylated Fatty Acids (cfas) References

The 3 sources that drive our Cetylated Fatty Acids (cfas) monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Cetylated Fatty Acids (cfas) is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Osteoarthritis — MedlinePlus (NIH) Source
  2. Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
  3. Using Dietary Supplements Wisely — NIH NCCIH Source

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 Cetylated Fatty Acids (cfas) and Riociguat Together: Common Questions

Is it safe to take Cetylated Fatty Acids (cfas) with Riociguat?
We do not list a known interaction between Cetylated Fatty Acids (cfas) and Riociguat. 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 Riociguat interact with any supplements?
Yes. Riociguat has documented interactions with 230 supplements in our database — Cetylated Fatty Acids (cfas) is not one of them. The Riociguat 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 Riociguat and Cetylated Fatty Acids (cfas)?

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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.