Drug & supplement interaction

Atlantic Cedar + Ravulizumab-Cwvz

Ravulizumab-Cwvz brand name: Ultomiris.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Atlantic Cedar and Ravulizumab-Cwvz 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

Atlantic Cedar and Ravulizumab-Cwvz

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 Ravulizumab-Cwvz and Atlantic Cedar 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 Atlantic Cedar at all — not against Ravulizumab-Cwvz, 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.

Atlantic Cedar safety at a glance

Atlantic Cedar overall Use caution Generally used topically in diluted form; the undiluted oil can irritate skin and should not be taken by mouth.
Pregnancy Avoid Not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety has not been established, so avoid use while breastfeeding.

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

Still wondering about combining Ravulizumab-Cwvz and Atlantic Cedar? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
One more smart check

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

We hold 2 real supplement products containing Atlantic Cedar, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Atlantic Cedar. Even though Atlantic Cedar itself has no known interaction with Ravulizumab-Cwvz, 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 Atlantic Cedar and Ravulizumab-Cwvz 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 Atlantic Cedar
Steady interest

#1,093 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Ravulizumab-Cwvz
Top half

#799 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 Atlantic Cedar reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Atlantic Cedar and Ravulizumab-Cwvz 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 Atlantic Cedar

What is Atlantic Cedar?

Atlantic Cedar
  • Hair loss (alopecia areata)
  • Insect repellent
  • Antimicrobial and antifungal
  • Aromatherapy and relaxation
  • Fragrance in cosmetics and perfumes

Atlantic cedar (Cedrus atlantica) is a tree whose wood and essential oil are used in traditional medicine, mainly applied to the skin and scalp or used as a scent. Human evidence for its health benefits is very limited, and the oil should be used diluted and never swallowed. Talk to a pharmacist or doctor before using it, especially if you are pregnant, breastfeeding, or treating a child.

Cedrus atlantica · Pinaceae · Wood and essential oil · Essential oil, topical preparations, aromatherapy products, cosmetics and soaps

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

Atlantic Cedar: dosing

There is no established standard dose for Atlantic cedar. It is not meant to be taken by mouth, and most use is topical or as a scent.If you use a product containing the oil, follow the directions on the label and dilute the essential oil in a carrier oil before applying it to skin.

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

Read the full Atlantic Cedar monograph & all interactions
Medication

About Ravulizumab-cwvz Injection

What Is Ravulizumab-cwvz Injection Used For?

Brand name: Ultomiris

  • Ravulizumab-cwvz injection is used in adults and children 1 month of age and older to treat paroxysmal nocturnal hemoglobinuria (PNH: a type of anemia in which too many red blood cells are broken down in the body, so there are not enough healthy cells to bring oxygen to all parts of the body). Ravulizumab-cwvz injection is also used in adults and children 1 month of age and older to treat atypical hemolytic uremic syndrome (aHUS; an inherited condition in which small blood clots form in the body and may cause damage to the blood vessels, blood cells, kidneys, and other parts of the body). Ravulizumab-cwvz injection is also used in adults to treat a certain form of myasthenia gravis (MG; a disorder of the nervous system that causes muscle weakness). Ravulizumab-cwvz is in a class of medications called monoclonal antibodies. It works by blocking the activity of the part of the immune system that may damage blood cells in people with PNH and that causes clots to form in people with aHUS. It works by disrupting communication between nerves and muscles in people with MG.

See full Ravulizumab-cwvz Injection drug information
Keep checking

Other Drugs & Atlantic Cedar

Browse every other medication we’ve checked against Atlantic Cedar — 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

Atlantic Cedar References

The 1 references that drive our Atlantic Cedar 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. Hay IC, Jamieson M, Ormerod AD. Randomized trial of aromatherapy. Successful treatment for alopecia areata. Arch Dermatol 1998;134:1349-52. 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 Atlantic Cedar and Ravulizumab-Cwvz Together: Common Questions

Is it safe to take Atlantic Cedar with Ravulizumab-Cwvz?
We do not list a known interaction between Atlantic Cedar and Ravulizumab-Cwvz. 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.

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

Still Have a Question About Ravulizumab-Cwvz and Atlantic Cedar?

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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.