Drug & supplement interaction

Common Stonecrop + Mefloquine

Mefloquine brand name: Lariam.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Common Stonecrop and Mefloquine 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. Additionally, although there is no interaction, the label for Mefloquine states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Common Stonecrop and Mefloquine

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 Mefloquine and Common Stonecrop 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 Common Stonecrop at all — not against Mefloquine, 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.

Common Stonecrop safety at a glance

Common Stonecrop overall Use caution Limited safety data exist, and internal use can cause irritation, vomiting, and diarrhea.
Pregnancy Avoid There is not enough safety information, so avoid use during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so it is best to avoid it.

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

Still wondering about combining Mefloquine and Common Stonecrop? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Common Stonecrop and Mefloquine May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Diarrhea / Vomiting Additional detail

    Common Stonecrop

    “Orally, common stonecrop can cause vomiting and diarrhea when consumed in very large amounts (18).”

    Common Stonecrop · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Mefloquine

    Listed in the ADVERSE REACTIONS section of the FDA label for Mefloquine. Read the label on DailyMed ›

Effects for Mefloquine come from the ADVERSE REACTIONS section of its FDA label; effects for Common Stonecrop come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

How to take them

Some Mefloquine Products Have a Food Rule — Common Stonecrop Should Not Break It

At least one FDA label for a product containing Mefloquine says to take it on an empty stomach. Most supplements — Common Stonecrop included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Mefloquine on its own and move Common Stonecrop to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Mefloquine products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

The drug should not be taken on an empty stomach and should be administered with at least 8 oz (240 mL) of water.

From the Dosage and Administration section of the FDA label we read for Mefloquine — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Mefloquine

This page covers Common Stonecrop only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Mefloquine page lists 23 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Biofeedback (moderate), Coffee Charcoal (moderate), Dendrobium (moderate) and European Mandrake (moderate).

By severity: 1 major · 13 moderate · 9 minor.

From our pharmacist’s overview on the Mefloquine page

“Mefloquine (Lariam) prevents and treats malaria and carries its own well-known warnings about seizures and psychiatric effects, so I take this interaction list more seriously than most. Six of the 23 supplements on file, including ginkgo and melatonin, may lower the seizure threshold, a poor match for a drug with mefloquine's neurologi…”

Reviewed by 2 · Jul 18, 2026

Open the Mefloquine interaction page

How much people look this up

Where Common Stonecrop and Mefloquine 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 Common Stonecrop
Steady interest

#1,160 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Mefloquine
Steady interest

#2,515 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 Common Stonecrop reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Common Stonecrop and Mefloquine records this page draws on were last updated July 10, 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 Common Stonecrop

What is Common Stonecrop?

Common Stonecrop
  • Wounds and skin irritation
  • Eczema and other skin conditions
  • Constipation (laxative use)
  • Urinary and bladder complaints
  • High blood pressure (folk use)

Common Stonecrop (Sedum acre) is a small succulent with a long history in European folk medicine, mostly applied to the skin or used as a laxative. There is very little modern scientific evidence to support any of its uses, and the plant can be irritating and may cause vomiting or diarrhea when swallowed, so it should be used with caution and ideally avoided internally.

Sedum acre · Crassulaceae · Above-ground parts (leaves, stems, and flowering tops), used fresh or dried · Fresh plant, dried herb, topical preparations, and rarely teas or tinctures

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

Common Stonecrop: dosing

There is no established or standardized dose for Common Stonecrop. Because it has not been studied in proper clinical trials, safe and effective amounts are simply not known.If you choose to use a commercial product, follow the directions on the label and do not exceed them.

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

Read the full Common Stonecrop monograph & all interactions
Medication

About Mefloquine

What Is Mefloquine Used For?

Brand name: Lariam

Mefloquine Hydrochloride tablets are used to treat mild to moderate acute malaria caused by Plasmodium falciparum (including strains resistant to chloroquine) and Plasmodium vivax. They are also used to prevent malaria infections, including chloroquine-resistant strains of P. falciparum, in people traveling to malaria-endemic areas.

Important note: mefloquine does not eliminate the liver stage of P. vivax, so patients treated for P. vivax malaria usually need an additional medication (such as primaquine) afterward to prevent relapse.

See full Mefloquine drug information
Keep checking

Other Drugs & Common Stonecrop

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

See the full Common Stonecrop interactions page
See every supplement checked against Mefloquine, ranked by severity
Evidence & sources

Common Stonecrop References

The 1 references that drive our Common Stonecrop 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. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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 Common Stonecrop and Mefloquine Together: Common Questions

Is it safe to take Common Stonecrop with Mefloquine?
We do not list a known interaction between Common Stonecrop and Mefloquine. 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.
Do Common Stonecrop and Mefloquine have any of the same side effects?
Yes — our sources link each of them separately to 2 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Common Stonecrop and Mefloquine at the same time of day?
At least one FDA label for a product containing Mefloquine says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Mefloquine on its own and move Common Stonecrop to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Mefloquine interact with any supplements?
Yes. Mefloquine has documented interactions with 23 supplements in our database — Common Stonecrop is not one of them. The Mefloquine 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

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

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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.