Interactions on record — worth a quick check against your medications. Based on 6 of 7 ingredients. Check your meds →
Dietary supplement

Bronchitis Formula 450 mg Ingredients & Drug Interactions

by TerraVita Premium Collection

Bronchitis Formula 450 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Bronchitis Formula 450 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Bronchitis Formula 450 mg is a dietary supplement by TerraVita Premium Collection with 7 active ingredients. Its ingredients are commonly taken for cough, sore throat, bronchitis and congestion.Based on those ingredients, 790 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Coltsfoot, Common Ivy, California Poppy. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Bronchitis Formula 450 mg by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Bronchitis Formula 450 mg by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Bronchitis Formula 450 mg by TerraVita Premium Collection

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 7 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (450 mg) without saying how much of each component you get.

This formula contains 7 active ingredients in a proprietary blend: coltsfoot, agrimony, mullein, common ivy (English ivy), mallow, California poppy, and tarrify. Coltsfoot, mullein, and mallow have been used traditionally for respiratory support, though the evidence for their effectiveness is limited.

Agrimony and mallow are also used as herbal remedies for digestive and skin concerns. California poppy has been traditionally used for relaxation and sleep support.

The product is delivered in gelatin capsules with water as inactive ingredients.

Does it work?

Insufficient evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Insufficient

There isn't enough reliable clinical evidence to rate this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Cough, bronchitis and respiratory congestion relief.
  • We looked for evidence on: Bronchitis, Cough, Respiratory tract infections, Asthma, Chest congestion, Mucus clearance — and 2 related terms.
  • The closest evidence on file: Mallow is rated "Insufficient Reliable Evidence To Rate" for Cough (Natural Medicines).
  • Also on file: English Ivy is rated "Insufficient Reliable Evidence To Rate" for Bronchitis, Respiratory tract infections, Cough.
  • Also on file: Mullein is rated "Insufficient Reliable Evidence To Rate" for Bronchitis, Asthma, Cough.

The evidence for this product's effectiveness is not established in the data we hold. Mullein, for example, shows insufficient reliable evidence for bronchitis, cough, asthma, and other conditions it's meant to address.

English ivy likewise has insufficient evidence for bronchitis and respiratory tract infections. Mallow shows insufficient evidence for cough and the conditions it's used for.

California poppy has insufficient evidence for anxiety and insomnia. None of the individual ingredients have a documented rating of proven or probable effectiveness for the conditions this formula targets.

The evidence, ingredient by ingredient Coltsfoot Agrimony Mullein English Ivy Mallow California Poppy

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 5 of the 6 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 6 of 6.
  • General safety write-ups exist for 6 of 6.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Several of these ingredients carry caution flags. Coltsfoot is a significant concern: it contains liver-toxic alkaloids that can damage your liver and lungs with chronic use, and it's rated likely unsafe in pregnancy and while breastfeeding.

Mullein, English ivy, mallow, and California poppy all have limited human safety data and are rated possibly unsafe or insufficiently studied in pregnancy and lactation—the facts advise against use in those situations. English ivy's raw plant form is toxic; the extract used here is generally better tolerated, though it can cause abdominal pain, nausea, diarrhea, vomiting, and skin irritation.

Agrimony has limited safety data overall, and mallow may cause nausea, vomiting, diarrhea, and indigestion. California poppy, when used with other supplements, has been reported to cause morning fatigue and muscular stiffness, though it's unclear whether the effect came from California poppy alone.

Side effects, ingredient by ingredient Coltsfoot Agrimony Mullein English Ivy Mallow California Poppy

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 5 of the 6 matched ingredients can interact with medications — California Poppy, English Ivy, Mullein, Agrimony, Coltsfoot.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 791 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, check your medications against these types: blood thinners (anticoagulants and antiplatelet drugs like warfarin and aspirin)—Moderate risk from coltsfoot and mullein; blood pressure medications—Moderate risk from coltsfoot; seizure medications and tuberculosis drugs that induce CYP3A4 (like carbamazepine and rifampin)—Moderate risk from coltsfoot; diabetes medications—Moderate risk from agrimony; drugs broken down by CYP2C19, CYP2D6, or CYP2C8 enzymes—Moderate risk from English ivy; and sedating medications—Moderate risk from California poppy.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with insufficient evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This formula combines respiratory herbs with limited evidence and real drug-interaction risks. If you're on blood thinners, diabetes medication, seizure drugs, blood pressure medication, or sedating drugs, you'll need to clear this with your pharmacist first.

Avoid it if you're pregnant or breastfeeding. Talk with your pharmacist before adding it to your routine.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 6 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 21, 2023.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Bronchitis Formula 450 mg, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435121631
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Apr 21, 2023
DSLD ID 289924
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Bronchitis Formula 450 mg by TerraVita Premium Collection, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
064435121631
IngredientAmount% DV
Proprietary Blend450 mg--
Coltsfoot0 NP--
Agrimony0 NP--
Mullein0 NP--
Common Ivy0 NP--
Mallow0 NP--
California Poppy0 NP--
Tarrify0 NP--

Other ingredients: Gelatin, Water

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2004 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Take 1 capsule, 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product not intended to diagnose, treat, cure, or prevent any disease.

Formula

Agrimony, coltsfoot, mullein and more

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Bronchitis Formula 450 mg by TerraVita Premium Collection label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Bronchitis Formula 450 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Bronchitis Formula 450 mg by TerraVita Premium Collection

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Blend

450 mg per serving

Other (inactive) ingredients: Gelatin, Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Bronchitis Formula 450 mg by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Bronchitis Formula 450 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
790Drugs
790 Moderate

Ingredients driving the most interactions

Coltsfoot 374
Common Ivy 280
California Poppy 248
Mullein 122
Agrimony 86

Individual Drug Interactions

The ingredients in Bronchitis Formula 450 mg interact with 790 drugs. Click any drug to see the details.

5 of the 7 ingredients in Bronchitis Formula 450 mg interact with drugs. Each result below shows which ingredient is responsible. Coltsfoot Common Ivy California Poppy Mullein Agrimony

Each ingredient & the kinds of drugs it affects

For each ingredient in Bronchitis Formula 450 mg with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Coltsfoot3 drug types · 374 drugs

Anticoagulant/Antiplatelet Drugs

Concomitant use might increase the risk of bleeding due to decreased platelet aggregation. Coltsfoot has been reported to inhibit platelet aggregation; avoid concomitant use. Some of these drugs include aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, excessive doses of coltsfoot may interfere with antihypertensive or cardiovascular therapy.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Inducers

Hepatotoxic pyrrolizidine alkaloids (PA) are substrates of cytochrome P450 3A4 (CYP3A4). Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites. Some drugs that induce CYP3A4 include carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, rifabutin (Mycobutin), and others.

Likelihood Possible Evidence D
Coltsfoot full monograph & interactions

Common Ivy3 drug types · 280 drugs

Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, English ivy might increase the levels of drugs metabolized by CYP2C19.
In vitro research shows that English ivy inhibits CYP2C19 enzymes. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C8 (Cyp2C8) Substrates

Theoretically, English ivy might increase the levels of drugs metabolized by CYP2C8.
In vitro research shows that English ivy inhibits CYP2C8 enzymes. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, English ivy might increase the levels of drugs metabolized by CYP2D6.
In vitro research shows that English ivy inhibits CYP2D6 enzymes. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Common Ivy full monograph & interactions

California Poppy1 drug type · 248 drugs

Cns Depressants

Theoretically, taking California poppy with drugs with sedative effects may increase the risk of sedative effects.
Laboratory research shows that California poppy has sedative effects.

Likelihood Possible Evidence D
California Poppy full monograph & interactions

Mullein1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Lab tests on extracts from different parts of common and dense-flowered mullein plants show that they do have some blood-thinning effects, as they increase the time it takes for blood to clot. This is likely due to at least one of the known constituents of muellein, triterpenoid saponins. However, the effects appear to be mild and results have been inconsistent. Extracts from different plant parts have been show to have varying anticoagulant strengths, with water-based ones being more potent than alcohol-based extracts.

Likelihood Unlikely Evidence A
Mullein full monograph & interactions

Agrimony1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, taking agrimony with antidiabetes drugs might increase the risk of hypoglycemia.
Agrimony has demonstrated hypoglycemic effects in animal research.

Likelihood Possible Evidence D
Agrimony full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Bronchitis Formula 450 mg, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Bronchitis Formula 450 mg by TerraVita Premium Collection: Common Questions

Does Bronchitis Formula 450 mg by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Bronchitis Formula 450 mg has a known interaction with 790 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Bronchitis Formula 450 mg contains 7 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take if I'm pregnant or breastfeeding?
No. Coltsfoot is rated likely unsafe in both pregnancy and breastfeeding due to toxic alkaloids that can harm the baby or pass into breast milk. The other ingredients—mullein, English ivy, mallow, and California poppy—don't have enough safety data either and are best avoided when pregnant or breastfeeding. Talk with your doctor before use.
Does this actually work for bronchitis?
The evidence isn't established in our data. Mullein and English ivy, two of the main ingredients, both show insufficient reliable evidence for bronchitis specifically. So we can't confirm this formula will help your condition.
What's coltsfoot, and why is it flagged as risky?
Coltsfoot is a plant used traditionally for respiratory issues, but it contains toxic compounds called pyrrolizidine alkaloids that can damage your liver and lungs over time. Chronic exposure can lead to serious liver disease and, in some cases, blood clots. It also thins the blood and can interfere with blood pressure control—which is why interactions with medications matter.
Can I take this with my blood thinner?
No, not without checking with your pharmacist first. Coltsfoot and mullein both have blood-thinning effects and may increase your risk of bleeding when combined with drugs like warfarin, heparin, or aspirin.
What are the most common side effects?
English ivy can cause abdominal pain, nausea, diarrhea, and vomiting. Mallow may cause nausea, vomiting, diarrhea, and indigestion. California poppy, when used in combination products, has been reported to cause morning fatigue and muscular stiffness, though it's not clear whether those effects came from California poppy alone.
What's in the capsule besides the active ingredients?
The formula contains gelatin capsules and water. There are no other added fillers or inactive ingredients beyond those two.

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

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Bronchitis Formula 450 mg label
Go deeper

The Full Monographs Behind Bronchitis Formula 450 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Coltsfoot

Interacts with 374 drugs

Coltsfoot is a traditional herb long used to soothe coughs and clear mucus, but solid human evidence for these uses is lacking. More importantly, the raw plant can contain liver-toxic pyrrol...

Read the full Coltsfoot monograph → Herb & supplement monograph

Agrimony

Interacts with 86 drugs

Agrimony is a traditional European herb rich in tannins that has long been used for sore throats, mild diarrhea, and minor skin problems. Good-quality human studies are very limited, so its...

Read the full Agrimony monograph → Herb & supplement monograph

Mullein

Interacts with 122 drugs

Mullein is a traditional herbal remedy most often used as a tea or syrup to soothe coughs, sore throats, and respiratory irritation. High-quality human studies are lacking, so its benefits a...

Read the full Mullein monograph → Herb & supplement monograph

English Ivy

Interacts with 280 drugs

English ivy leaf extract is most commonly used in cough and cold syrups to help loosen mucus and ease coughing, and it is a popular ingredient in many European herbal products. Some research...

Read the full English Ivy monograph → Herb & supplement monograph

Mallow

Mallow (Malva sylvestris) is a traditional herb valued for its soothing, mucilage-rich leaves and flowers, used mostly for sore throat, cough, and minor skin or stomach irritation. Scientifi...

Read the full Mallow monograph → Herb & supplement monograph

California Poppy

Interacts with 248 drugs

California poppy is a traditional herbal remedy used mainly for anxiety and sleep problems, often combined with other calming herbs. Human research is very limited, so its true benefits are...

Read the full California Poppy monograph →
Sources

Sources & How We Checked

Bronchitis Formula 450 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

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

The 32 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Coltsfoot 8 references
  1. Roulet M, Laurini R, Rivier L, Calame A. Hepatic veno-occlusive disease in newborn infant of a woman drinking herbal tea. J Pediatr 1988;112:433-6. PubMed
  2. WHO working group. Pyrrolizidine alkaloids. Environmental Health Criteria, 80. WHO: Geneva, 1988.
  3. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46. PubMed
  4. Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
  5. Wilson BE, Hobbs WN. Case report: pseudoephedrine-associated thyroid storm: thyroid hormone-catecholamine interactions. Am J Med Sci 1993;306:317-9. PubMed
  6. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20. PubMed
  7. Hwang SB, Chang MN, Garcia ML, et al. L-652,469--a dual receptor antagonist of platelet activating factor and dihydropyridines from Tussilago farfara L. Eur J Pharmacol 1987;141:269-81. PubMed
  8. Freshour JE, Odle B, Rikhye S, Stewart DW. Coltsfoot as a potential cause of deep vein thrombosis and pulmonary embolism in a patient also consuming kava and blue vervain. J Diet Suppl 2012;9:149-54. PubMed

See these in context on the Coltsfoot monograph →

Agrimony 4 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. Gray AM, Flatt PR. Actions of the traditional anti-diabetic plant, Agrimony eupatoria (agrimony): effects on hyperglycaemia, cellular glucose metabolism and insulin secretion. Br J Nutr 1998;80:109-14.
  4. Swanston-Flatt SK, Day C, Bailey CJ, Flatt PR. Traditional plant treatments for diabetes. Studies in normal and streptozotocin diabetic mice. Diabetologia 1990;33:462-4. PubMed

See these in context on the Agrimony monograph →

Mullein 2 references
  1. Castro AI, Carmona JB, Gonzales FG, Nestar OB. Occupational airborne dermatitis from gordolobo (Verbascum densiflorum). Contact Dermatitis 2006;55(5):301.
  2. Flores Echaiz C, Al Ali A, Cao AQ, Sasseville D. Simultaneous contact dermatitis caused by Asteraceae and Verbascum thapsus. Contact Dermatitis 2017;76(5):316-8.

See these in context on the Mullein monograph →

English Ivy 13 references
  1. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  2. Fazio S, Pouso J, Dolinsky D, et al. Tolerance, safety and efficacy of Hedera helix extract in inflammatory bronchial diseases under clinical practice conditions: a prospective, open, multicentre postmarketing study in 9657 patients. Phytomedicine 2009;16 PubMed
  3. García M, Fernández E, Navarro JA, et al. Allergic contact dermatitis from Hedera helix L. Contact Dermatitis 1995;33(2):133-4.
  4. Hausen BM, Brohan J, Konig WA, et al. Allergic and irritant contact dermatitis from falcarinol and didehydrofalcarinol in common ivy (Hedera helix L.). Contact Dermatitis 1987;17(1):1-9.
  5. Mitchell, J. C. Allergic contact dermatitis from Hedera helix and Brassaia actinophylla (Araliaceae). Contact Dermatitis 1981;7(3):158-159.
  6. Boyle J, Harman RM. Contact dermatitis to Hedera helix (common ivy). Contact Dermatitis 1985;12(2):111-112. PubMed
  7. Yesudian PD, Franks A. Contact dermatitis from Hedera helix in a husband and wife. Contact Dermatitis 2002;46(2):125-126.
  8. Bregnbak D, Menné T, Johansen JD. Airborne contact dermatitis caused by common ivy (Hedera helix L. ssp. helix). Contact Dermatitis. 2015;72(4):243-4.
  9. Jones JM, White IR, White JM, McFadden JP. Allergic contact dermatitis to English ivy (Hedera helix)--a case series. Contact Dermatitis. 2009 Mar;60(3):179-80.
  10. Lurquin E, Swinnen I, Goossens A. Allergic contact dermatitis caused by Hedera helix arborescens and not by Hedera helix L. Contact Dermatitis. 2012;66(6):352-3.
  11. Paulsen E, Christensen LP, Andersen KE. Dermatitis from common ivy (Hedera helix L. subsp. helix) in Europe: past, present, and future. Contact Dermatitis. 2010;62(4):201-9.
  12. Rehman SU, Kim IS, Choi MS, Kim SH, Zhang Y, Yoo HH. Time-dependent Inhibition of CYP2C8 and CYP2C19 by Hedera helix Extracts, A Traditional Respiratory Herbal Medicine. Molecules. 2017;22(7). PubMed
  13. Kruttschnitt E, Wegener T, Zahner C, Henzen-Bücking S. Assessment of the Efficacy and Safety of Ivy Leaf (Hedera helix) Cough Syrup Compared with Acetylcysteine in Adults and Children with Acute Bronchitis. Evid Based Complement Alternat Med. 2020 May 4;2

See these in context on the English Ivy monograph →

Mallow 2 references
  1. Ameri A, Heydarirad G, Rezaeizadeh H, Choopani R, Ghobadi A, Gachkar L. Evaluation of Efficacy of an Herbal Compound on Dry Mouth in Patients With Head and Neck Cancers: A Randomized Clinical Trial. J Evid Based Complementary Altern Med. 2016;21(1):30-3. PubMed
  2. Elsagh M, Fartookzadeh MR, Kamalinejad M, et al. Efficacy of the Malva sylvestris L. flowers aqueous extract for functional constipation: A placebo-controlled trial. Complement Ther Clin Pract. 2015;21(2):105-11. PubMed

See these in context on the Mallow monograph →

California Poppy 3 references
  1. Hanus M, Lafon J, Mathieu M. Double-blind, randomised, placebo-controlled study to evaluate the efficacy and safety of a fixed combination containing two plant extracts (Crataegus oxyacantha and Eschscholtzia californica) and magnesium in mild-to-moderate
  2. Paul LD, Springer D, Staack RF, et al. Cytochrome P450 isoenzymes involved in rat liver microsomal metabolism of californine and protopine. Eur J Pharmacol 2004;485:69-79. PubMed
  3. Paul LD, Maurer HH. Studies on the metabolism and toxicological detection of the Eschscholtzia californica alkaloids californine and protopine in urine using gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2003;789:43-5

See these in context on the California Poppy monograph →

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

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