Drug & supplement interaction

Asarabacca + Furosemide

Furosemide brand name: Lasix.

Major Interaction
Medically reviewed by · Updated February 2024
The bottom line Major

Asarabacca has a major interaction with Furosemide. Asarabacca, a herbaceous plant, is often contaminated with aristolochic acid, a compound known for its nephrotoxic effects.

Read the full interaction report
SeverityMajor
LikelihoodPossible
EvidenceC
What do Severity, Likelihood & Evidence mean?
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Interaction report

Asarabacca and Furosemide

Here is the interaction we found between these two, with the evidence behind it.

Major

Nephrotoxic Drugs

Why this applies to Furosemide

Furosemide falls under Nephrotoxic Drugs — the group Asarabacca interacts with.

Asarabacca, a herbaceous plant, is often contaminated with aristolochic acid, a compound known for its nephrotoxic effects. Aristolochic acid can damage the kidneys and is deemed unsafe by the FDA, leading to the classification of products containing it as adulterated. When considering medications that may also pose a risk of kidney damage, caution is advised when combining them with asarabacca due to potential additive nephrotoxicity. It is advisable to consult healthcare professionals before using asarabacca alongside nephrotoxic drugs to minimize the risk of adverse effects on kidney function.
Severity Major Likelihood Possible Evidence C

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the concern with pairing furosemide (Lasix) and asarabacca. This isn't about one changing how the other is broken down. Instead, it's about adding up two separate stresses on your kidneys. Asarabacca often contains aristolochic acid, which the FDA flags as genuinely harmful to the kidneys. Furosemide is a strong water pill that pulls fluid and salt out through your kidneys, and if you get dehydrated or your salt levels drop too far, that already puts strain on them.

Stack those together and you raise the risk of kidney injury, showing up as much less urine, swelling, fatigue, or muscle cramps from lost minerals. The evidence here is limited, but the stakes are high. I'd honestly skip asarabacca entirely, and please check with your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Asarabacca Also Interacts With Other Medications

Asarabacca has 354 major, known drug interactions in our database — the Furosemide one above is one of them. If you take anything else, check it against the full list below.

Major 354 No known interaction 2,476 (incl. Furosemide)
Taking anything else?

Check Another of Your Medications Against Asarabacca

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

From our Q&A

Questions About Asarabacca or Furosemide

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

This page covers Asarabacca only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Furosemide page lists 227 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), Lithium (major) and Oleander (major).

By severity: 9 major · 193 moderate · 25 minor.

From our pharmacist’s overview on the Furosemide page

“Yellow dock is where I would start with furosemide (Lasix). This water pill already flushes potassium, and heavy yellow dock use can compound that loss, one of nine major-rated interactions on a list of 227 that deserves genuine care.”

Reviewed by 2 · Jul 18, 2026

Open the Furosemide interaction page

One more smart check

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

We hold 2 real supplement products containing Asarabacca, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Asarabacca. Your product may carry other ingredients that interact with Furosemide too, on top of Asarabacca — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Asarabacca and Furosemide 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 Asarabacca
Top half

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

29 days ago today
Medication Furosemide
Steady interest

#1,509 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.

Supplement

About Asarabacca

What is Asarabacca?

Asarabacca
  • Sinus and nasal congestion
  • Coughs and bronchial complaints
  • Inducing sweating
  • Inducing vomiting (emetic)
  • Digestive upset

Asarabacca is a European woodland plant traditionally used to clear the nose, cause sweating, or trigger vomiting, but it is rarely used today. It belongs to a plant family that often contains aristolochic acid, a substance the FDA considers unsafe because it can cause serious kidney damage and cancer, so we do not recommend using it.

Read the full Asarabacca monograph & all interactions
Medication

About Furosemide

What Is Furosemide Used For?

Brand name: Lasix

Furosemide tablets and oral solution are used in adults and children to treat edema (fluid buildup) caused by congestive heart failure, cirrhosis of the liver, and kidney disease, including nephrotic syndrome. In adults, oral furosemide is also used to treat high blood pressure, alone or alongside other blood pressure medications.

Furosemide injection is reserved for patients who cannot take oral medicine or for emergency situations such as acute pulmonary edema (sudden dangerous fluid in the lungs). Furoscix (subcutaneous injection) is specifically indicated for edema in adults with chronic heart failure or chronic kidney disease, including nephrotic syndrome, and in pediatric patients weighing at least 43 kg. Lasix Onyu (subcutaneous injection) is indicated for edema in adults with chronic heart failure only.

See full Furosemide drug information
Keep checking

Other Drugs & Asarabacca

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

354Major
0Moderate
0Minor
2,475No known interaction
354 Major 2,475 No interaction
Major

354 interactions

Showing 60 of 354 major interactions — see all 354 on the Asarabacca page.

No interaction 2,475 drugs checked — show the list

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

Showing the 60 most looked-up of 2,475 medications checked with no known interaction — see the full Asarabacca list.

See the full Asarabacca interactions page
See every supplement checked against Furosemide, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Asarabacca monograph › Uses, safety, and every drug interaction in one place Furosemide supplement interactions › Every supplement checked against Furosemide, ranked by severity Furosemide drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Asarabacca and Furosemide Together: Common Questions

Can you take Asarabacca with Furosemide?
This is rated a major interaction, so the combination is best avoided unless your doctor or pharmacist has specifically told you otherwise. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Asarabacca and Furosemide interaction?
We rate it Major. This is a clinically significant combination that is generally best avoided, or used only under the direct supervision of your physician or pharmacist.

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

Still Have a Question About Furosemide and Asarabacca?

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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.