Cleavers Combination #1 Ingredients & Drug Interactions
by Genestra Brands
What is this page for?
First and foremost: checking Cleavers Combination #1 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
Cleavers Combination #1 is a dietary supplement by Genestra Brands with 5 active ingredients. Its ingredients are commonly taken for menopause symptoms (hot flashes), high cholesterol, bone health/osteoporosis.Based on those ingredients, 961 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Red Clover (Trifolium pratense) flower extract, Echinacea (Echinacea purpurea) root extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Cleavers Combination #1 by Genestra Brands
Ask about any prescription or over-the-counter medication and we check it for interactions with Cleavers Combination #1 by Genestra Brands — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Cleavers Combination #1 by Genestra Brands
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.
What’s inside
Full disclosure
This liquid combination contains five herbal extracts. Red Clover flower extract, Echinacea root extract, Mallow aerial parts extract, Cleavers aerial parts extract, and Heal All aerial parts extract make up the active ingredients.
The product also contains purified water and ethanol as inactive ingredients.
Does it work?
Couldn't assess
The evidence for what this combination does isn't established in our data. Red Clover has been studied for menopausal symptoms, bone health, and hair loss, but the data we hold rates all those as having insufficient reliable evidence.
Echinacea's effectiveness for anxiety, athletic performance, ADHD, burns, chronic fatigue, and migraine headaches is also rated as insufficient reliable evidence. Mallow has been studied for cough, constipation, dry mouth and eyes, and eczema, but again, we have insufficient reliable evidence for any of those uses.
How safe is it?
Well-documented data
Red Clover is generally well tolerated short-term in healthy adults, but because it has estrogen-like effects, it calls for caution in people sensitive to hormones. The safety data advises against it during pregnancy because of those estrogenic effects and lack of safety data.
There isn't enough safety information to recommend it while breastfeeding. Common side effects from red clover include muscle aches, nausea, and vaginal spotting.
Echinacea is generally well tolerated short-term, though it may trigger allergic reactions, especially in people sensitive to ragweed and related plants. Stomach upset, rashes, diarrhea, nausea, and vomiting are the most common side effects, and rare cases of severe allergic reactions and liver inflammation have been reported.
Mallow is generally well tolerated for short-term use, but human safety data are limited. Common side effects include diarrhea, indigestion, nausea, and vomiting.
The safety data advises against mallow during pregnancy, and there isn't enough information to recommend it while breastfeeding without your doctor's approval.
Meds to double-check
Moderate interaction found
Before you take this product, double-check with your pharmacist if you're on estrogen therapy, methotrexate, or tamoxifen (all Moderate severity with Red Clover). Also check if you take immunosuppressants, etoposide, or CYP1A2-metabolized drugs like some antidepressants (Moderate severity with Echinacea).
Minor interactions are documented with blood thinners like warfarin, midazolam, and HIV medications. We could not check Cleavers, Heal All, or Mallow.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This is a multi-ingredient herbal combination where we can track interactions for Red Clover and Echinacea but not the other three. If you take estrogen therapy, methotrexate, tamoxifen, immunosuppressants, chemotherapy drugs, or certain sedatives or HIV medications, you need to check this product with your pharmacist or doctor first.
Even if you don't take those medications, run your complete medication list through the checker on this page before you start.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 23, 2016.
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
General information
Key facts about Cleavers Combination #1, straight from the product label.
| Brand | Genestra Brands |
|---|---|
| Barcode (UPC) | 88319613590 |
| Net contents | 2 fl. Oz.; 60 mL |
| Market status | On market |
| Date entered into DSLD | Feb 23, 2016 |
| DSLD ID | 56446 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Dairy Free |
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 Cleavers Combination #1 by Genestra Brands, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Cleavers (Galium aparine) aerial parts extract | 0.68 mL | -- |
| Heal All (Prunella vulgaris) aerial parts extract | 0.3 mL | -- |
| Red Clover (Trifolium pratense) flower extract | 0.23 mL | -- |
| Echinacea (Echinacea purpurea) root extract | 0.18 mL | -- |
| Mallow (Malva neglecta) aerial parts extract | 0.12 mL | -- |
Other ingredients: purified Water, Ethanol
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Recommended Adult Dose: Take 30 drops three to five times daily, 30 minutes before meals, or as recommended by your healthcare practitioner.
Precautions
Risk Information: If you are pregnant, breastfeeding, or allergic to plants of the Asteraceae/Compositae/Daisy family, do not use.
Risk Information: If you are pregnant, breastfeeding, or allergic to plants of the Asteraceae/Compositae/Daisy family, do not use.
Hypersensitivity to echinacea has been known to occur; in which case, discontinue use.
Quality Assurance: Safety-sealed for your protection and for product freshness. Do not use if outer seal is missing or broken.
Formulation
Guaranteed to contain no added starch, soy, sodium, sugar, artificial coloring or flavoring, dairy or animal products.
Ideal for vegans.
Storage
Store in a cool, dry place.
General
V1.0 719
FDA Statement of Identity
HERBAL SUPPLEMENT
Seals/Symbols
Seroyal
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Cleavers Combination #1 by Genestra Brands label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Cleavers Combination #1 by Genestra Brands
These are the 5 active ingredients this product is made of. Select any to open its full monograph.
Serving size1.5 mL Dosage formLiquid Servings per container40 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.
Cleavers (Galium aparine) aerial parts extract
Heal All (Prunella vulgaris) aerial parts extract
Red Clover (Trifolium pratense) flower extract
Interacts with867 drugs
Red clover is a plant rich in isoflavones (plant compounds with weak estrogen-like activity) that is most often used for menopause symptoms like hot f...
Red Clover (Trifolium pratense) flower extract monograph & interactionsEchinacea (Echinacea purpurea) root extract
Interacts with816 drugs
Echinacea is a popular herb taken to help prevent or shorten the common cold, but study results are mixed and the overall benefit appears small at bes...
Echinacea (Echinacea purpurea) root extract monograph & interactionsMallow (Malva neglecta) aerial parts extract
No knowninteractions
Mallow (Malva sylvestris) is a traditional herb valued for its soothing, mucilage-rich leaves and flowers, used mostly for sore throat, cough, and min...
Mallow (Malva neglecta) aerial parts extract monograph & interactionsOther (inactive) ingredients: Purified Water, Ethanol. These complete the product’s ingredient list but are not active constituents.
Cleavers Combination #1 by Genestra Brands Drug Interactions
HelloPharmacist Interaction Report
Cleavers Combination #1 by Genestra Brands contains five herbal extracts, and we can document interactions for three of them.
The most serious concerns involve Red Clover and Echinacea, both of which carry Moderate-severity interactions.
Read the full breakdown — every affected drug type, severity by severity
Red Clover may interfere with estrogen therapy (Moderate severity) because it contains plant compounds with estrogen-like effects that could compete for how your body uses prescription estrogens. It also carries a Moderate risk with methotrexate—there's a case report of a person on methotrexate for psoriasis who developed severe nausea and stomach pain after taking red clover, though this is uncommon.
Tamoxifen (a breast cancer medication) is another Moderate concern, as the plant compounds in red clover might theoretically reduce its effectiveness. Red Clover has additional Minor interactions with drugs metabolized by your liver's CYP1A2, CYP2C19, CYP2C9, and CYP3A4 enzymes, and with blood thinners (anticoagulants) and antiplatelet drugs, though clinical studies suggest these effects may not occur in practice.
Echinacea also carries Moderate-severity interactions with CYP1A2 substrates (it can raise caffeine levels by about 30%), CYP3A4 substrates, drugs that suppress your immune system (immunosuppressants), and etoposide (a chemotherapy drug). It has Minor interactions with warfarin (a blood thinner) and with HIV medications like lopinavir/ritonavir, and with midazolam (a sedative).
We could not check three ingredients: Cleavers, Heal All, and Mallow—we hold no interaction data for them. Use the medication checker on this page to verify your exact drugs before starting.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Cleavers Combination #1?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Cleavers Combination #1 interact with 961 drugs. Click any drug to see the details.
2 of the 5 ingredients in Cleavers Combination #1 interact with drugs. Each result below shows which ingredient is responsible. Red Clover (Trifolium pratense) flower extract Echinacea (Echinacea purpurea) root extract
Acetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, ChlorzoxazoneAcetazone Forte, Extra Strength Tylenol Aches & Strains, Parafon Forte
How Acetaminophen, Chlorzoxazone interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorzoxazone interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorzoxazone interactionAcetaminophen, Chlorzoxazone, CodeineAcetazone Forte C8, Parafon Forte C8
How Acetaminophen, Chlorzoxazone, Codeine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Chlorzoxazone, Codeine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Chlorzoxazone, Codeine interactionAcetaminophen, CodeineTylenol No.3, Tylenol w/ Codeine
How Acetaminophen, Codeine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Codeine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Codeine interactionAcetaminophen, Codeine, DoxylamineMersyndol
How Acetaminophen, Codeine, Doxylamine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Codeine, Doxylamine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Codeine, Doxylamine interactionAcetaminophen, Codeine, MethocarbamolAcetaminophen, Codeine, Methocarbamol, Robaxacet 8
How Acetaminophen, Codeine, Methocarbamol interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Codeine, Methocarbamol interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Codeine, Methocarbamol interactionAcetaminophen, Dexbrompheniramine, PseudoephedrineSinadrin Plus
How Acetaminophen, Dexbrompheniramine, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dexbrompheniramine, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dexbrompheniramine, Pseudoephedrine interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylpropanolamineAnatuss
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylpropanolamine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PseudoephedrineRobitussin Cold, Severe Cold, Suphedrine Cold/Cough
How Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Guaifenesin, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Phenylpropanolamine, PyrilamineTheracaps
How Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Phenylpropanolamine, Pyrilamine interactionAcetaminophen, Dextromethorphan, PseudoephedrineAlka-Seltzer PLUS Flu Liquid Gels, Non Aspirin Cold Caps, Tylenol Cold, Tylenol Flu Daytime Ex Strength, Tylenol Flu Ex Strength
How Acetaminophen, Dextromethorphan, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Dichloralantipyrine, IsomethepteneAmidrine, Midchlor, Migquin, Migratine
How Acetaminophen, Dichloralantipyrine, Isometheptene interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dichloralantipyrine, Isometheptene interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dichloralantipyrine, Isometheptene interactionAcetaminophen, Dichloralphenazone, IsomethepteneMidrin
How Acetaminophen, Dichloralphenazone, Isometheptene interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dichloralphenazone, Isometheptene interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dichloralphenazone, Isometheptene interactionAcetaminophen, Dichlorophenazone, IsometheptaneIsocom
How Acetaminophen, Dichlorophenazone, Isometheptane interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Dichlorophenazone, Isometheptane interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Dichlorophenazone, Isometheptane interactionAcetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Diphenhydramine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, Doxylamine, PseudoephedrineEx Strength Tylenol Sinus Nighttime
How Acetaminophen, Doxylamine, Pseudoephedrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Doxylamine, Pseudoephedrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Doxylamine, Pseudoephedrine interactionAcetaminophen, HydrocodoneAnexsia, Anodynos DHC, Azdone, Co-Gesic, Doucet, Lorcet +9 more
How Acetaminophen, Hydrocodone interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Hydrocodone interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Hydrocodone interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Ibuprofen interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Anticoagulant/antiplatelet Drugs +1 Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Ibuprofen interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Meperidine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Meperidine interactionAcetaminophen, MethocarbamolRobaxacet
How Acetaminophen, Methocarbamol interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Methocarbamol interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Methocarbamol interactionAcetaminophen, OrphenadrineOrfenagesic
How Acetaminophen, Orphenadrine interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Orphenadrine interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Orphenadrine interactionAcetaminophen, OxycodonePercocet, Roxicet, Tylox, Xartemis XR
How Acetaminophen, Oxycodone interacts with Cleavers Combination #1 — through 2 ingredients. Tap an ingredient for the detail:
Echinacea (echinacea Purpurea) Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Read the full Echinacea (echinacea Purpurea) Root Extract + Acetaminophen, Oxycodone interactionRed Clover (trifolium Pratense) Flower ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
Read the full Red Clover (trifolium Pratense) Flower Extract + Acetaminophen, Oxycodone interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Cleavers Combination #1 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.
Red Clover (Trifolium pratense) flower extract
Estrogens
Theoretically, concomitant use of large amounts of red clover might interfere with estrogen therapy.
Red clover contains phytoestrogens which might have estrogenic activity in some people. Theoretically, red clover might compete for estrogen receptors and interfere with estrogen-containing drug therapy.
Methotrexate (Trexall, Others)
Theoretically, red clover might increase the risk of methotrexate toxicity.
In a case report, a 52-year-old female receiving weekly methotrexate injections for psoriasis developed symptoms of methotrexate toxicity, including severe vomiting and epigastric pain, after three days of taking red clover 430 mg daily. Toxicity resolved after red clover was discontinued. However, no liver function tests or methotrexate levels were reported.
Tamoxifen (Nolvadex)
Theoretically, the phytoestrogens in red clover might interfere with tamoxifen.
In vitro and animal research suggests that genistein, a constituent of red clover, might antagonize the antitumor effects of tamoxifen. However, there is some evidence from an animal study that red clover does not reduce the efficacy of tamoxifen. Until more is known, tell patients taking tamoxifen to avoid red clover.
Anticoagulant/Antiplatelet Drugs
Although some laboratory research suggests that red clover may have anticoagulant and antiplatelet activity, clinical research has not shown this effect.
In vitro research suggests that genistein in red clover has antiplatelet effects, and historically, red clover was thought to have anticoagulant effects due to its coumarin content. However, some experts state that this is unlikely as most natural coumarins have not been shown to have anticoagulant effects, and their content in red clover is low. Additionally, some clinical research in postmenopausal patients found no effect on coagulation or prothrombin time with the use of red clover flowering tops 378 mg daily for 12 months or red clover isoflavone (Rimostil) 50 mg daily for 2 years.
Caffeine
Theoretically, soy might reduce the clearance of caffeine; however, a small clinical study found no effect.
Red clover contains genistein. Taking genistein 1 gram daily for 14 days seems to inhibit caffeine clearance and metabolism in healthy females. However, this effect does not seem to occur with the lower amounts of genistein found in red clover. A clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
In vitro evidence shows that red clover inhibits CYP1A2. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine, a CYP1A2 probe substrate.
Cytochrome P450 2C19 (Cyp2C19) Substrates
Theoretically, red clover might increase the levels and clinical effects of drugs metabolized by CYP2C19.
In vitro evidence suggests that red clover weakly inhibits CYP2C19. This interaction has not been reported in humans.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, red clover might increase levels of drugs metabolized by CYP2C9; however, a small clinical study found no effect.
In vitro evidence suggests that red clover might inhibit CYP2C9. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of tolbutamide, a CYP2C9 probe substrate.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
In vitro evidence shows that red clover might inhibit CYP3A4 isoenzymes. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of alprazolam, a CYP3A4 probe substrate.
Echinacea (Echinacea purpurea) root extract
Caffeine
Echinacea can increase plasma levels of caffeine by inhibiting its metabolism.
Echinacea seems to increase plasma concentrations of caffeine by around 30%. This is likely due to inhibition of cytochrome P450 1A2 (CYP1A2) by echinacea.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Echinacea might inhibit the metabolism of CYP1A2 and increase plasma levels of some drugs.
Echinacea appears to inhibit CYP1A2 enzymes in humans. Additionally, echinacea seems to increase plasma concentrations of caffeine, a CYP1A2 substrate, by around 30%. Theoretically, echinacea might increase levels of other drugs metabolized by CYP1A2.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Echinacea may induce hepatic CYP3A4 and inhibit intestinal CYP3A4. This may increase or decrease levels of drugs metabolized by CYP3A4.
Several clinical trials have shown that taking echinacea for up to one month does not significantly affect the metabolism of various CYP3A4 substrates, including midazolam, docetaxel, etravirine, lopinavir-ritonavir, and darunavir-ritonavir. However, other clinical research shows that echinacea may increase the clearance of midazolam, suggesting that echinacea might induce CYP3A4. The discrepancy is thought to be due to differing effects of echinacea on intestinal versus hepatic CYP3A4 enzymes. Echinacea appears to induce hepatic CYP3A4 but inhibit intestinal CYP3A4. In some cases, these effects might cancel each other out, but in others, drug levels may be increased or decreased depending on the level of effect at hepatic and intestinal sites. The effect of echinacea on CYP3A4 activity may differ depending on the CYP3A4 substrate.
Etoposide (Vepesid)
Echinacea may increase levels of etoposide.
In one report, concomitant use of etoposide and echinacea was associated with more severe thrombocytopenia than the use of etoposide alone, suggesting inhibition of etoposide metabolism. Etoposide is a cytochrome P450 3A4 (CYP3A4) substrate. Echinacea has variable effects on CYP3A4, but some studies have reported inhibition of the enzyme.
Immunosuppressants
Echinacea has immunostimulant activity which may interfere with immunosuppressant therapy.
Theoretically, echinacea may interfere with immunosuppressant therapy because of its immunostimulant activity.
Darunavir (Prezista)
Theoretically, echinacea may interfere with the metabolism of darunavir; however, a small clinical study found no effect.
Darunavir is metabolized by cytochrome P450 3A4 (CYP3A4) and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Echinacea has variable effects on CYP3A4, but administration of an E. purpurea root extract (Arkocapsulas Echinacea, Arkopharma) 500 mg four times daily for 14 days did not affect darunavir/ritonavir pharmacokinetics in 15 HIV-infected patients.
Dayquil Severe
Echinacea is reported to have varying effects on a number of Cytochrome P450 metabolizing enzymes in the liver, including CYP1A2 and CYP3A4, which play a role in acetaminophen and dextromethorphan metabolism (both contained in DayQuil Severe), respectively. Studies have reported both enzyme inhibition and induction, making it difficult to predict clinically significant drug interactions with reliability. Specific drug interaction studies reporting definitive results are rare, and potential drug interactions involving echinacea should likely be taken on a case-by-case basis. Based on what we know about how acetaminophen and dextromethorphan are metabolized, the risk of a clinically significant interaction between echinacea and DayQuil Severe is low.
Docetaxel (Taxotere)
Theoretically, echinacea may interfere with the metabolism of docetaxel; however, a small clinical study found no effect.
Docetaxel is metabolized by cytochrome P450 3A4 (CYP3A4). Echinacea has variable effects on CYP3A4, but taking E. purpurea whole plant extract (Echinaforce, A. Vogel Biopharma AG) 20 drops three times daily for 2 weeks did not alter the pharmacokinetics of docetaxel in one clinical study.
Etravirine (Intelence)
Theoretically, echinacea may interfere with the metabolism of etravirine; however, a small clinical study found no effect.
Etravirine is metabolized by cytochrome P450 3A4 (CYP3A4). Echinacea has variable effects on CYP3A4, but taking E. purpurea root extract (Arkocapsulas Echinacea, Arkopharma) 500 mg three times daily for 14 days did not alter the pharmacokinetics of etravirine in HIV-infected patients.
Lopinavir/Ritonavir (Kaletra)
Theoretically, echinacea may interfere with the metabolism of lopinavir; however, a small clinical study found no effect.
Lopinavir is metabolized by cytochrome P450 3A4 (CYP3A4) and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Echinacea has variable effects on CYP3A4, but taking E. purpurea (Echinamide, Natural Factors Nutritional Products, Inc.) 500 mg three times daily for 14 days did not alter the pharmacokinetics of lopinavir/ritonavir in healthy volunteers.
Midazolam (Versed)
Theoretically, echinacea may increase the metabolism of intravenous midazolam.
Echinacea induces hepatic CYP3A4 and might decrease plasma levels of midazolam by about 20%, reducing the effectiveness of intravenous midazolam. Echinacea also appears to inhibit intestinal CYP3A4, which could theoretically increase the bioavailability of oral midazolam. This may cancel out the decrease in availability caused by induction of hepatic CYP3A4, such that overall plasma levels after oral administration of midazolam are not affected by echinacea.
Warfarin (Coumadin)
Echinacea seems to increase the clearance of warfarin, although the effect may not be clinically significant.
Preliminary clinical research in healthy male volunteers suggests that taking echinacea increases the clearance of the active S-isomer of warfarin after a single dose of warfarin, but there was not a clinically significant effect on the INR.
Brand information
Manufacturer and brand details for Cleavers Combination #1, from the product label.
Genestra Brands
- Name
- Seroyal USA
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15275
- Phone Number
- 1-888-737-6925
- Web Address
- seroyal.com
Cleavers Combination #1 by Genestra Brands: Common Questions
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Is Echinacea safe to take with my coffee?
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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.
The Full Monographs Behind Cleavers Combination #1’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Red Clover
Interacts with 867 drugsRed clover is a plant rich in isoflavones (plant compounds with weak estrogen-like activity) that is most often used for menopause symptoms like hot flashes. The evidence is mixed and genera...
Read the full Red Clover monograph → Herb & supplement monographEchinacea
Interacts with 816 drugsEchinacea is a popular herb taken to help prevent or shorten the common cold, but study results are mixed and the overall benefit appears small at best. It is generally well tolerated for sh...
Read the full Echinacea monograph → Herb & supplement monographMallow
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 →Sources & How We Checked
Cleavers Combination #1'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 77 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.
Red Clover 24 references
- Kurzer MS, Xu X. Dietary phytoestrogens. Annu Rev Nutr 1997;17:353-81. PubMed
- Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
- Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
- This P, De La Rochefordiere A, Clough K, et al. Phytoestrogens after breast cancer. Endocr Relat Cancer 2001;8:129-34. PubMed
- Tice J, Cummings SR, Ettinger B, et al. Few adverse effects of two red clover extracts rich in phytoestrogens: a multicenter, placebo-controlled trial. Alt Ther 2001;7:S33.
- Ingram DM, Hickling C, West L, et al. A double-blind randomized controlled trial of isoflavones in the treatment of cyclical mastalgia. The Breast 2002;11:170-4. PubMed
- Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
- Cheong JL, Bucknall R. Retinal vein thrombosis associated with a herbal phytoestrogen preparation in a susceptible patient. Postgrad Med J 2005;81:266-7.. PubMed
- Geller SE, Shulman LP, van Breemen RB, et al. Safety and efficacy of black cohosh and red clover for the management of vasomotor symptoms: a randomized controlled trial. Menopause 2009;16:1156-66. PubMed
- Hidalgo LA, Chedraui PA, Morocho N, et al. The effect of red clover isoflavones on menopausal symptoms, lipids and vaginal cytology in menopausal women: a randomized, double-blind, placebo-controlled study. Gynecol Endocrinol 2005;21(5):257-264. PubMed
- Campbell MJ, Woodside JV, Honour JW, et al. Effect of red clover-derived isoflavone supplementation on insulin-like growth factor, lipid and antioxidant status in healthy female volunteers: a pilot study. Eur J Clin Nutr 2004;58(1):173-179. PubMed
- Guerrero JA, Lozano ML, Castillo J, et al. Flavonoids inhibit platelet function through binding to the thromboxane A2 receptor. J Thromb Haemost 2005;3(2):369-376. PubMed
- Kondo K, Suzuki Y, Ikeda Y, Umemura K. Genistein, an isoflavone included in soy, inhibits thrombotic vessel occlusion in the mouse femoral artery and in vitro platelet aggregation. Eur J Pharmacol 2002;455(1):53-57. PubMed
- Polini N, Rauschemberger MB, Mendiberri J, et al. Effect of genistein and raloxifene on vascular dependent platelet aggregation. Mol Cell Endocrinol 2007;267(1-2):55-62. PubMed
- Wuttke W, Jarry H, Seidlova-Wuttke D. Plant-derived alternative treatments for the aging male: facts and myths. Aging Male 2010;13(2):75-81. PubMed
- Villaseca P. Non-estrogen conventional and phytochemical treatments for vasomotor symptoms: what needs to be known for practice. Climacteric 2012;15(2):115-124. PubMed
- Chen, Y., Xiao, C. Q., He, Y. J., Chen, B. L., Wang, G., Zhou, G., Zhang, W., Tan, Z. R., Cao, S., Wang, L. P., and Zhou, H. H. Genistein alters caffeine exposure in healthy female volunteers. Eur.J Clin.Pharmacol. 2011;67(4):347-353. PubMed
- Friedman, J. A., Taylor, S. A., McDermott, W., and Alikhani, P. Multifocal and recurrent subarachnoid hemorrhage due to an herbal supplement containing natural coumarins. Neurocrit.Care 2007;7(1):76-80. PubMed
- Hooper, L., Madhavan, G., Tice, J. A., Leinster, S. J., and Cassidy, A. Effects of isoflavones on breast density in pre- and post-menopausal women: a systematic review and meta-analysis of randomized controlled trials. Hum.Reprod.Update. 2010;16(6):745-7 PubMed
- Orr A and Parker R. Red clover causing symptoms suggestive of methotrexate toxicity in a patient on high-dose methotrexate. Menopause Int. 2013;19(3):133-134. PubMed
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- Risk assessment for peri- and post-menopausal women taking food supplements containing isolated isoflavones. EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS). 2015. DOI
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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.
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