Drug & supplement interaction

Arenaria Rubra + Pimecrolimus

Pimecrolimus brand name: Elidel.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Arenaria Rubra and Pimecrolimus 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

Arenaria Rubra and Pimecrolimus

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 Pimecrolimus and Arenaria Rubra 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.

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.

Arenaria Rubra safety at a glance

Arenaria Rubra overall Not established Human safety data are very limited, so use cautiously and under professional guidance.

Pregnancy Avoid There is not enough safety information, so it is best avoided during pregnancy.

Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid use to be safe.

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

Still wondering about combining Pimecrolimus and Arenaria Rubra? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Pimecrolimus

Interactions in our licensed database are recorded against drug classes, not just single drug names. Pimecrolimus is filed under a single classification — topical drugs. Arenaria Rubra has documented interactions with 1 drug class — the most serious being acetylcholinesterase (ache) inhibitors (moderate) — and none of Pimecrolimus’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Arenaria Rubra Does Interact With Other Medications

Arenaria Rubra has 17 moderate known drug interactions in our database — Pimecrolimus isn’t one of them. If you take anything else, check it against the full list below.

Moderate 17 No known interaction 2,813 (incl. Pimecrolimus)

Taking anything else?

Check Another of Your Medications Against Arenaria Rubra

Covers the 2,830 medications we’ve checked against Arenaria Rubra. Pick one to open its full report.

What to actually watch for

What Pimecrolimus’s Own FDA Label Lists

This is not an interaction — none of it involves Arenaria Rubra. These are the most notable effects listed in the ADVERSE REACTIONS section of Pimecrolimus’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. 2 of them are worth acting on rather than waiting out — marked below.

Hives Worth acting on
A higher chance of infection Worth acting on
A skin rash mentioned in 22.9% of FDA reports for Pimecrolimus
A stuffy or runny nose
Sore throat
Cough
Fever
Headache

From the ADVERSE REACTIONS section of the FDA label for Pimecrolimus. Read the label on DailyMed › Where a percentage is shown, it is the share of 1,600 voluntary FDA FAERS reports for Pimecrolimus that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Arenaria Rubra’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Arenaria Rubra side to compare — that is a limit of the record, not a statement that Arenaria Rubra has no side effects.

Everything else you take

See Every Supplement That Interacts With Pimecrolimus

This page covers Arenaria Rubra only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pimecrolimus 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 Pimecrolimus page

“Pimecrolimus (Elidel) is an eczema cream, applied to the skin rather than swallowed, so its supplement interactions are few and they follow one pattern. All three ingredients on file are also used topically, and the two rated moderate, DMSO and turpentine oil, may pull more of the drug through the skin, amplifying both its benefit and…”

Reviewed by 2 · Jul 18, 2026

Open the Pimecrolimus interaction page

How much people look this up

Where Arenaria Rubra and Pimecrolimus 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 Arenaria Rubra

Top half

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

29 days ago today

Medication Pimecrolimus

Steady interest

#2,135 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. Arenaria Rubra 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 Arenaria Rubra reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Arenaria Rubra and Pimecrolimus 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Arenaria Rubra

What is Arenaria Rubra?

Urinary and bladder complaints
Kidney stones ("stone-breaking")
Mild diuretic
Traditional digestive support
Antioxidant interest

Arenaria rubra (Spergularia rubra) is a small herb used in folk medicine, mainly for urinary and kidney complaints. Modern evidence is very limited and comes mostly from laboratory studies, so its benefits in people are not proven. Talk with a pharmacist or doctor before using it, especially if you have a medical condition or are pregnant.

Spergularia rubra · Caryophyllaceae · Above-ground parts (aerial parts) · Tea (infusion), dried herb, liquid extracts

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

Arenaria Rubra: dosing

There is no established or standardized dose for Arenaria rubra. Reliable dosing studies in humans are lacking, so a safe and effective amount has not been defined.If you choose to use a commercial product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Arenaria Rubra monograph & all interactions

Medication

About Pimecrolimus Topical

What Is Pimecrolimus Topical Used For?

Brand name: Elidel

Pimecrolimus cream 1% is used to treat mild to moderate atopic dermatitis (eczema) in adults and children aged 2 and older. It is a second-line option — meaning it's tried when other topical prescription treatments haven't worked well enough, or when those treatments aren't a good fit.

It is intended for short-term and non-continuous use only, applied only to the affected areas. It is not approved for use in children under 2 years of age, and it should only be used in people with healthy immune systems.

Most-Reported Side Effects for Pimecrolimus

From FAERS, the FDA’s public side-effect reporting system (1,704 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dermatitis atopic 200 reports

Pruritus 193 reports

Rash 183 reports

Dry skin 101 reports

Eczema 97 reports

See full Pimecrolimus Topical drug information

Keep checking

Other Drugs & Arenaria Rubra

Browse every other medication we’ve checked against Arenaria Rubra — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

17Moderate

0Minor

2,812No known interaction

17 Moderate 2,812 No interaction

Moderate

17 interactions

No interaction 2,812 drugs checked — show the list

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

Showing the 60 most looked-up of 2,812 medications checked with no known interaction — see the full Arenaria Rubra list.

See the full Arenaria Rubra interactions page

See every supplement checked against Pimecrolimus, ranked by severity

Evidence & sources

Arenaria Rubra References

The 2 sources that drive our Arenaria Rubra monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Arenaria Rubra is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

Using Dietary Supplements Wisely — NIH National Center for Complementary and Integrative Health Source
Herbal Medicine — MedlinePlus (NIH) 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 Arenaria Rubra and Pimecrolimus Together: Common Questions

Is it safe to take Arenaria Rubra with Pimecrolimus?

We do not list a known interaction between Arenaria Rubra and Pimecrolimus. 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.

How was the Arenaria Rubra and Pimecrolimus combination checked?

Interactions in our licensed database are recorded against drug classes. Pimecrolimus is filed under 1 classification, and Arenaria Rubra has documented interactions with 1 drug class — none of Pimecrolimus's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Arenaria Rubra interact with any other medications?

Yes. Arenaria Rubra has 17 documented drug interactions in our database — Pimecrolimus is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Pimecrolimus interact with any supplements?

Yes. Pimecrolimus has documented interactions with 3 supplements in our database — Arenaria Rubra is not one of them. The Pimecrolimus 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

Arenaria Rubra monograph Uses, safety profile, and every drug interaction in one place Pimecrolimus Topical drug information The full plain-English guide to this medication Pimecrolimus supplement interactions Every supplement checked against Pimecrolimus, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Pimecrolimus and Arenaria Rubra?

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.