Herb & supplement monograph

Fumitory Drug Interactions, Uses, Effectiveness, Safety & More

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Interaction report

Drugs that interact with Fumitory

0 medications have a known interaction with Fumitory, graded by severity. Select any drug for the full evidence-based detail.

We don’t currently list any known drug interactions for Fumitory. This doesn’t guarantee none exist — always confirm with your pharmacist before combining supplements with your medications.

Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction 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.
  • Possible. 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
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each drug listed above links to the full report for that exact Fumitory combination — clinical detail, likelihood, evidence level, and citations.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Monograph

Fumitory: Uses, Safety & Side Effects

The bottom line

Fumitory is a traditional European herb used mainly for digestive and minor liver or gallbladder complaints, but solid human evidence is very limited. It may cause side effects at higher doses, and its safety is not well established, so talk with your pharmacist or doctor before using it and avoid it during pregnancy and breastfeeding.

Scientific name
Fumaria officinalis
Family
Papaveraceae
Part used
Aerial parts (flowering tops, leaves, and stems)
Common forms
Tea, dried herb, liquid extract, tincture, capsules
People commonly use it for
  • Digestive and bile-flow complaints
  • Mild liver and gallbladder support
  • Skin conditions like eczema
  • Mild constipation
  • Cleansing or 'detox' tonics

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance
OverallUse caution

Generally used short-term in small amounts, but human safety data are limited.

PregnancyInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full pregnancy detail
BreastfeedingInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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Overview

Fumitory (Fumaria officinalis) is a small flowering plant in the poppy family. It has feathery, gray-green leaves and tiny pink-purple flowers, and it grows as a common weed in fields, gardens, and along roadsides across Europe, North Africa, and parts of Asia.

The name comes from the old idea that its smoke resembled rising vapor or "smoke from the earth." For centuries, traditional European herbalists have used the dried above-ground parts of the plant to make teas and extracts.

Today it is most often taken as a tea or liquid extract, mainly for digestive complaints and to support bile flow. It is sometimes found in blended herbal products marketed for liver health or skin.

How it works

Fumitory contains a group of natural compounds called isoquinoline alkaloids (such as protopine and fumarine), along with flavonoids, organic acids, and other plant chemicals.

Researchers think these compounds may help balance the flow of bile, which could ease cramping in the digestive tract and gallbladder. Some compounds appear to relax or, at higher amounts, stimulate smooth muscle, which may explain its traditional use for cramps.

It is important to know that most of this information comes from laboratory and animal studies, not large human trials. The exact way Fumitory works in people is not fully understood.

Effectiveness

Does Fumitory work?

Evidence overview · 3 uses evaluated
1 Leans ineffective 2 Insufficient evidence
How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.
2Likely EffectiveGood evidence, though not yet conclusive.
3Possibly EffectiveSome evidence suggests a benefit.
4Possibly IneffectiveSome evidence it may not help.
5Likely IneffectiveFairly strong evidence it doesn’t help.
6IneffectiveStrong evidence it doesn’t work.
7Insufficient Reliable Evidence to RateToo little research to say either way.
Possibly Ineffective Irritable bowel syndrome (IBS)
Rating & evidence shown verbatim from Natural Medicines

Limited data suggest that oral fumitory is not beneficial in patients with IBS.

Also studied for 2 conditions — evidence insufficient to rate
Insufficient Reliable Evidence To Rate Atopic dermatitis (eczema)
Rating & evidence shown verbatim from Natural Medicines

Oral fumitory has only been evaluated in combination with other ingredients; its effect when used alone is unclear.

Insufficient Reliable Evidence To Rate Breast cancer-related hot flashes
Rating & evidence shown verbatim from Natural Medicines

Oral fumitory has only been evaluated in combination with other ingredients; its effect when used alone is unclear.

Source & disclaimer. Effectiveness ratings and evidence summaries are provided by Natural Medicines (Therapeutic Research Center) and shown as licensed. Where Natural Medicines hasn’t rated a use, HelloPharmacist’s pharmacists may add their own reviewed rating and evidence (each such entry is labeled). This is educational information, not medical advice — talk with your pharmacist or doctor before starting, stopping, or changing a supplement.

Safety & precautions

When used short-term in the small amounts found in teas and standard herbal preparations, Fumitory is generally considered relatively well tolerated. However, human safety data are limited, and higher doses may not be safe.

People with gallstones, bile duct blockage, or serious liver disease should not use Fumitory without medical advice, since affecting bile flow could be harmful. Anyone with a chronic health condition should check with a pharmacist or doctor first.

Pregnancy: There is not enough information to consider Fumitory safe, so it should be avoided during pregnancy.

Breastfeeding: Safety is unknown, so it is best avoided while breastfeeding.

It is also not recommended for infants and young children. Do not use it as a replacement for prescribed medicine, and stop and seek care if you feel unwell.

Side effects

At typical low doses, side effects are usually mild and uncommon. Some people may notice stomach upset or mild digestive discomfort.

At higher doses, Fumitory's alkaloids may cause more pronounced effects, and overuse should be avoided. Allergic reactions are possible, especially in people sensitive to plants in the poppy family.

Stop using Fumitory and seek medical help if you develop signs of an allergic reaction such as rash, swelling, or trouble breathing.

Dosing

There is no well-established standardized dose for Fumitory. Traditional use involves teas or liquid extracts made from the dried herb, but exact amounts vary widely between products.

Because a reliable, evidence-based dose has not been set, the safest approach is to follow the directions on the product label and not exceed them. Avoid long-term use unless advised by a healthcare professional.

Always check with your pharmacist or doctor before starting Fumitory, especially if you take other medicines or have a medical condition.

Pregnancy & Breastfeeding

Fumitory & Pregnancy

Insufficient reliable information

Insufficient reliable information available; avoid using.

Fumitory & Breastfeeding

Insufficient reliable information

Insufficient reliable information available; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.

© 2026 Therapeutic Research Center

Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center

References & further reading

The 1 sources that drive our Fumitory monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing.

  1. Fumitory — MedlinePlus / RxList Source
Keep reading

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.

Product directory

Supplement products with Fumitory

46 products in our database contain Fumitory. Open any to see its full ingredient list and every drug interaction we check.

Biocidin by Bio-Botanical Research Liquid 1 fl. Oz. · 30 mL View ingredients & interactions Biocidin by Bio-Botanical Research Capsule 90 Capsule(s) View ingredients & interactions Biocidin Broad-Spectrum Liquid Capsules by Biocidin Botanicals Capsule 90 Capsule(s) View ingredients & interactions Biocidin Broad-Spectrum Liquid Formula by Biocidin Botanicals Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Biocidin LSF by Bio-Botanical Research Liquid 1.7 fl. Oz. · 50 mL View ingredients & interactions Biocidin LSF by Bio-Botanical Research Liquid 1.7 Fluid Ounce(s) · 50 mL View ingredients & interactions Biocidin LSF Broad-Spectrum Liposomal Formula by Biocidin Botanicals Liquid 1.7 Fluid Ounce(s) · 50 Milliliter(s) View ingredients & interactions Biocidin TS Daily Herbal Throat Spray by Biocidin Botanicals Liquid 1 Fluid Ounce(s) · 30 Milliliter(s) View ingredients & interactions Cell Detox by Professional Botanicals Capsule 60 Veg. Capsule(s) View ingredients & interactions Cholesterol Maintenance Complex by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Cholesterol Maintenance Complex 450 mg by TerraVita Premium Collection Capsule 100 Capsule(s) View ingredients & interactions Cholesterol Maintenance Complex Chocolate Flavor by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Cholesterol Maintenance Complex Mint Flavor by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Cholesterol Maintenance Complex Powder by TerraVita Premium Collection Powder 4 Ounce(s) View ingredients & interactions Cholesterol Maintenance Complex Powder by TerraVita Premium Collection Powder 1 Ounce(s) View ingredients & interactions Cholesterol Maintenance Complex Strawberry Flavor by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Cholesterol Maintenance Complex Vanilla Flavor by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Dentalcidin LS Oral Microbiome Liposomal Rinse Natural Mint by Biocidin Botanicals Liquid 1 Fluid Ounce(s) · 30 Milliliter(s) View ingredients & interactions Fumitory by Hawaii Pharm Liquid 4 Fluid Ounce(s) · 120 mL View ingredients & interactions Fumitory by Herbal Terra Liquid 2 Fluid Ounce(s) · 60 mL View ingredients & interactions Fumitory by TerraVita Liquid 1 Fluid Ounce(s) · 30 mL View ingredients & interactions Fumitory by Herbal Terra Liquid 4 Fluid Ounce(s) · 120 mL View ingredients & interactions Fumitory by Herbal Terra Liquid 4 Fluid Ounce(s) · 120 mL View ingredients & interactions Fumitory 450 mg by TerraVita Premium Collection Capsule 100 Capsule(s) View ingredients & interactions
Pharmacist Counseling Corner

Fumitory: Common Questions

What is Fumitory used for, and does it work?
People use Fumitory for a range of reasons, but according to the Natural Medicines database the current clinical evidence is insufficient to confirm it works for the specific conditions it has been studied for. See the graded list on this page, and talk to your pharmacist or doctor before relying on it for any condition.
Does Fumitory interact with prescription medications?
We do not currently list any known drug interactions for Fumitory. This does not guarantee that none exist, so always confirm with your pharmacist before combining it with your medications.
How are Fumitory interactions rated?
Each interaction is graded major, moderate, or minor based on how clinically significant it is and the strength of the evidence behind it. Major interactions are the most serious and are best avoided, or used only under close professional supervision.
Is it safe to take Fumitory with my medications?
It depends on the specific medication. Some combinations are fine, while others call for monitoring, timing changes, or should be avoided. Check your exact drug above and confirm with your pharmacist or doctor before starting, stopping, or changing anything.
Where does this Fumitory interaction information come from?
Our interaction data is built on the Natural Medicines database — an evidence-graded reference for vitamins, herbs, and supplements — and is reviewed by licensed HelloPharmacist pharmacists, who may add clinical context.
What is Fumitory used for?
It is traditionally used for digestive complaints, mild cramping linked to bile flow, and minor liver or gallbladder support, as well as some skin conditions. Strong human evidence for these uses is limited.
Is Fumitory safe to take?
In small, short-term amounts it is generally considered relatively well tolerated, but human safety data are limited and higher doses may cause problems. Check with your pharmacist or doctor before using it.
Can I use Fumitory while pregnant or breastfeeding?
No. There is not enough safety information, so it should be avoided during pregnancy and breastfeeding.
How is Fumitory usually taken?
It is most often taken as a tea or liquid extract made from the dried flowering parts of the plant. Follow the product label, since there is no standardized dose.

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

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