Soothe Digest Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Soothe Digest 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
Soothe Digest is a dietary supplement by Natural Factors with 3 active ingredients. Its ingredients are commonly taken for digestive upset and bloating, infant colic, menstrual cramps.Based on those ingredients, 1,065 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Fennel, Caraway, Anise. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Soothe Digest by Natural Factors
Ask about any prescription or over-the-counter medication and we check it for interactions with Soothe Digest by Natural Factors — 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 Soothe Digest by Natural Factors
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
Soothe Digest contains 3 active herbal ingredients: fennel, anise, and caraway. These are traditional digestive herbs commonly used to support stomach comfort and ease gas and bloating.
The product also contains inactive ingredients—gelatin capsule, rice flour, magnesium stearate, and silica—which are fillers and binders that help form and stabilize the capsule.
Does it work?
Moderate evidence
Fennel is possibly effective for dysmenorrhea (menstrual pain), but evidence for its use in bronchitis, anxiety, bedwetting, and cholera is insufficient to rate. Anise has insufficient evidence to support its use for migraine, lice, menopausal symptoms, premenstrual syndrome, or dysmenorrhea in the data we hold.
Caraway is possibly effective for dyspepsia (indigestion and stomach discomfort), but evidence for amenorrhea, asthma, constipation, and gas is insufficient to rate.
How safe is it?
Well-documented data
Fennel is generally well tolerated when eaten as food, but concentrated supplements and essential oils warrant caution. Most common side effects are stomach discomfort, sensitivity to sunlight, and allergic reactions in susceptible people; rare cases of seizures have been reported.
Anise is also generally well tolerated orally, with contact dermatitis being the main topical concern; rare severe allergic reactions including anaphylaxis have occurred in sensitive individuals. Caraway is generally safe in food amounts, though concentrated oils combined with peppermint have caused nausea, vomiting, and burning sensations in some people, and allergic reactions are possible in those with asthma.
Fennel is rated possibly unsafe in pregnancy and lactation due to limited safety data and hormone-like effects—medicinal amounts and essential oil should be avoided, though food amounts are probably fine. Anise is rated likely safe during pregnancy and lactation.
Caraway is rated possibly unsafe in pregnancy (medicinal and oil amounts only; food is likely okay) but we have no lactation safety rating on file.
Meds to double-check
Moderate interaction found
Before taking Soothe Digest, double-check these medication types with your pharmacist: blood thinners and antiplatelet drugs (moderate risk of increased bleeding from fennel); estrogen-based contraceptives and hormone replacement therapy (moderate risk of reduced effectiveness from fennel and anise); blood-sugar medications (moderate risk of low blood sugar from anise and caraway); antidepressants including fluoxetine and imipramine (moderate risk of reduced effectiveness from anise); sedatives including diazepam (moderate risk of increased drowsiness from anise and caraway); diuretics (moderate risk of potassium loss from caraway); and lithium (moderate risk of raised levels from caraway). Minor interactions also affect TB medications (isoniazid, rifampin, pyrazinamide) via caraway.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Soothe Digest may appeal to you if you're looking for herbal support for indigestion or stomach comfort, particularly if caraway's possible effectiveness for dyspepsia fits your needs. However, if you take blood thinners, hormone therapies, antidepressants, diabetes medications, or TB drugs, check your specific medications before starting—the interaction list is long and ranges from moderate to minor severity.
Talk with your pharmacist about whether this product works with your current regimen.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 26, 2012.
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 Soothe Digest, straight from the product label.
| Brand | Natural Factors |
|---|---|
| Barcode (UPC) | 068958017471 |
| Net contents | 90 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Apr 26, 2012 |
| DSLD ID | 8440 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | 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 Soothe Digest by Natural Factors, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Fennel | 200 mg | -- |
| Anise | 150 mg | -- |
| Caraway | 100 mg | -- |
Other ingredients: Gelatin capsule, Rice Flour, Magnesium Stearate, Silica
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.
Precautions
Keep out of reach of children.
CAUTION: Consult a health professional prior to use if you are pregnant or breastfeeding.
Consult a health professional if you experience acute abdominal pain or if symptoms persist.
Do not use if you are allergic to the celery (Apiaceae or Umbelliferae) family.
Sealed for your protection. Do not use if seal is broken.
General Statements
Relieves symptoms of indigestion such as gas and bloating.* The carminative action of these herbs soothes the gastrointestinal tract and helps promote digestion.*
All Natural Factors products are manufactured in accordance with the Government of Canada's Good Manufacturing Practices (GMP), among the highest standards in the world.
PRODUCT OF CANADA
RELIEVES GAS AND BLOATING*
Storage
For freshness, store in a cool, dry place.
Seals/Symbols
(recycle) Recyclable container.
Purity & Potency Guaranteed
FDA Statement of Identity
DIETARY SUPPLEMENT
General
R2
Suggested/Recommended/Usage/Directions
Suggested Usage: 1 capsule per day or as directed by a health professional.
Formulation
Contains no artificial preservatives, color or sweeteners; no corn, dairy, soy, wheat or yeast.
FDA Disclaimer Statement
*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Soothe Digest by Natural Factors 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 Soothe Digest by Natural Factors
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule 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.
Fennel
Interacts with740 drugs
Fennel is a Mediterranean herb widely used as a food and spice, and traditionally taken for digestive complaints, colic, and menstrual cramps. Some sm...
Fennel monograph & interactionsAnise
Interacts with245 drugs
Anise is a fragrant, licorice-flavored seed used for centuries to ease digestion and soothe coughs. Most of its health claims are based on tradition a...
Anise monograph & interactionsCaraway
Interacts with413 drugs
Caraway is a common cooking spice that has long been used to ease gas, bloating, and indigestion. Some evidence suggests caraway oil—often combined wi...
Caraway monograph & interactionsOther (inactive) ingredients: Gelatin capsule, Rice Flour, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.
Soothe Digest by Natural Factors Drug Interactions
HelloPharmacist Interaction Report
Soothe Digest by Natural Factors contains three herbal ingredients—fennel, anise, and caraway—that together interact with a substantial number of medications.
The most serious concern is fennel's moderate-severity interaction with blood thinners (anticoagulants) and antiplatelet drugs: animal research suggests fennel may increase bleeding risk when combined with these medications. Altogether, these interactions span 1,054 individual medications.
Read the full breakdown — every affected drug type, severity by severity
Fennel also has moderate interactions with hormone-based contraceptives and estrogen replacement therapy (due to estrogenic compounds in fennel that may compete with these drugs), tamoxifen (a breast cancer drug whose effects fennel may reduce), drugs metabolized by the CYP3A4 enzyme (which fennel may inhibit, raising drug levels), and ciprofloxacin (an antibiotic whose levels fennel may lower by roughly half). Anise carries moderate interactions with estrogen therapies and contraceptives (though the research is mixed on whether it mimics or blocks estrogen), blood-sugar medications, fluoxetine and imipramine (antidepressants anise may reduce), diazepam (a sedative anise may strengthen), codeine (a pain reliever anise may amplify), and caffeine.
Caraway has moderate interactions with sedatives and CNS depressants (which it may enhance), blood-sugar drugs, diuretics (especially those that lower potassium), and lithium; it also carries minor interactions with isoniazid, rifampin, and pyrazinamide (TB medications).
Before you start Soothe Digest, check your exact medications with the interaction tool on this page.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Soothe Digest?
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 Soothe Digest interact with 1,065 drugs. Click any drug to see the details.
3 of the 3 ingredients in Soothe Digest interact with drugs. Each result below shows which ingredient is responsible. Fennel Caraway Anise
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Fennel + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Fennel + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
CarawayAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, caraway might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Caraway + Acarbose interactionAniseAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, anise seed might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Anise + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
FennelAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Fennel + Acenocoumarol interactionAcepromazineAtravet
How Acepromazine interacts with Soothe Digest — through 1 ingredient. Tap an ingredient for the detail:
CarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acepromazine interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Fennel + Acetaminophen, Aspirin interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelAnticoagulant/antiplatelet Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Fennel + Acetaminophen, Aspirin, Caffeine interactionAniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
AniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Butalbital, Caffeine interactionFennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Butalbital, Caffeine, Codeine interactionAniseAcetaminophen (tylenol, Others), Caffeine +1 Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Butalbital, Caffeine, Codeine interactionCarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
CarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Butalbital, Codeine interactionAniseAcetaminophen (tylenol, Others), Codeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
AniseAcetaminophen (tylenol, Others), Codeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Butalbital, Codeine Phosphate interactionCarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
CarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionFennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Codeine interactionAniseAcetaminophen (tylenol, Others), Caffeine +1 Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Codeine interactionCarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
CarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAniseAcetaminophen (tylenol, Others), Caffeine +1 Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Codeine, Salicylamide interactionFennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Dihydrocodeine interactionAniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Dihydrocodeine interactionCarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
AniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Isometheptene interactionFennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Caffeine, Pyrilamine interactionAniseAcetaminophen (tylenol, Others), Caffeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Caffeine, Pyrilamine interactionCarawayDiuretic Drugs Moderate
Interaction Summary
Theoretically, caraway might increase the risk of hypokalemia when used with diuretics that deplete potassium.
Read the full Caraway + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Soothe Digest — through 3 ingredients. Tap an ingredient for the detail:
AniseAcetaminophen (tylenol, Others), Codeine Moderate
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionCarawayCns Depressants Moderate
Interaction Summary
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Read the full Caraway + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionFennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Soothe Digest — through 2 ingredients. Tap an ingredient for the detail:
FennelCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
Read the full Fennel + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAniseAcetaminophen (tylenol, Others) Minor
Interaction Summary
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Read the full Anise + Acetaminophen, Chlorpheniramine, Phenylephrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Soothe Digest 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.
Fennel
Anticoagulant/Antiplatelet Drugs
Theoretically, fennel might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Animal research suggests that fennel oil has antithrombotic and antiplatelet effects.
Ciprofloxacin (Cipro)
Theoretically, fennel might decrease the levels and clinical effects of ciprofloxacin.
Animal research shows that fennel reduces ciprofloxacin bioavailability by nearly 50%, possibly due to the metal cations such as calcium, iron, and magnesium contained in fennel. This study also found that fennel increased tissue distribution and slowed elimination of ciprofloxacin.
Contraceptive Drugs
Theoretically, taking large amounts of fennel might decrease the effects of contraceptive drugs due to competition for estrogen receptors.
Some constituents of fennel have estrogenic activity.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, fennel might increase levels of drugs metabolized by CYP3A4.
In vitro research suggests that fennel inhibits CYP3A4 enzyme activity. This effect has not been reported in humans.
Estrogens
Theoretically, taking large amounts of fennel might interfere with hormone replacement therapy due to competition for estrogen receptors.
Some constituents of fennel have estrogenic activity.
Tamoxifen (Nolvadex)
Theoretically, taking large amounts of fennel might decrease the antiestrogenic effect of tamoxifen.
Some constituents of fennel have estrogenic activity, which may interfere with the antiestrogenic activity of tamoxifen.
Caraway
Antidiabetes Drugs
Theoretically, caraway might increase the risk of hypoglycemia when used with antidiabetes drugs.
Animal research suggests that caraway can reduce blood glucose levels. Monitor blood glucose levels closely. Medication dose adjustments may be necessary.
Cns Depressants
Theoretically, caraway might increase the effects and adverse effects of CNS depressants.
Animal research suggests that (S)-(+)-carvone, a major constituent of caraway seed extract, has sedative effects.
Diuretic Drugs
Theoretically, caraway might increase the risk of hypokalemia when used with diuretics that deplete potassium.
Animal research suggests that a single dose of caraway fruit extract can promote diuresis and increase the urinary excretion of sodium and potassium. However, sub-chronic use of caraway fruit extract does not seem to significantly increase potassium excretion, although urine output continues to be increased for up to 6 days.
Lithium
Theoretically, caraway might reduce excretion and increase levels of lithium due to diuretic effects.
Animal research suggests that caraway fruit extract has diuretic properties.
Isoniazid
Theoretically, caraway might increase the effects and adverse effects of isoniazid.
Animal research suggests that a specific fraction of caraway seed extract (CC-1a) can increase plasma levels of isoniazid when administered concomitantly. This interaction has not been reported in humans.
Pyrazinamide
Theoretically, caraway might increase the effects and adverse effects of pyrazinamide.
Animal research suggests that a specific fraction of caraway seed extract (CC-1a) can increase plasma levels of pyrazinamide when administered concomitantly. This interaction has not been reported in humans.
Rifampin (Rifadin)
Theoretically, caraway might increase the effects and adverse effects of rifampin.
Animal research suggests that a specific fraction of caraway seed extract (CC-1a) can increase plasma levels of rifampin when administered concomitantly. This interaction has not been reported in humans.
Anise
Antidiabetes Drugs
Theoretically, anise seed might increase the risk of hypoglycemia when taken with antidiabetes drugs.
A small clinical study shows that anise seed powder decreases fasting blood glucose levels by 36% when compared to baseline.
Caffeine
Theoretically, anise oil might decrease the efficacy of caffeine.
Animal research shows that taking anise oil with caffeine decreases the bioavailability of caffeine. Whether this interaction will occur in humans is unclear.
Codeine
Theoretically, anise oil might increase the effects and adverse effects of codeine.
Animal research shows that anise oil increases the analgesic effects of codeine, possibly by inducing its phase I metabolism and increasing conversion to morphine. Whether this interaction occurs in humans is unclear.
Contraceptive Drugs
Theoretically, anise might interfere with contraceptive drug therapy.
Some in vitro research suggests that anise has estrogenic effects, while other in vitro research suggests that anise has antiestrogenic effects.
Diazepam (Valium)
Theoretically, anise oil might increase the effects and adverse effects of diazepam.
Animal research shows that taking anise oil with diazepam increases the motor impairment associated with diazepam, possibly by inhibiting its breakdown by cytochrome P450 3A4. Whether this interaction occurs in humans is unclear.
Estrogens
Theoretically, anise might interfere with estrogen-based hormone replacement therapy.
Some in vitro research suggests that anise has estrogenic effects, while other in vitro research suggests that anise has antiestrogenic effects.
Fluoxetine (Prozac)
Theoretically, anise oil might decrease the efficacy of fluoxetine.
Animal research shows that taking anise oil with fluoxetine reduces the antidepressant effects of fluoxetine, possibly by promoting its breakdown by cytochrome P450 2D6. Whether this interaction occurs in humans is unclear.
Imipramine (Tofranil)
Theoretically, anise oil might decrease the efficacy of imipramine.
Animal research shows that taking anise oil with imipramine reduces the antidepressant effects of imipramine, possibly by promoting its breakdown by cytochrome P450 2D6. Whether this interaction occurs in humans is unclear.
Midazolam (Versed)
Theoretically, anise oil might increase the effects and adverse effects of midazolam.
Animal research shows that taking anise oil with midazolam increases the motor impairment associated with midazolam, possibly by inhibiting its breakdown by cytochrome P450 3A4. Whether this interaction occurs in humans is unclear.
Tamoxifen (Nolvadex)
Theoretically, anise might interfere with tamoxifen therapy.
Some in vitro research suggests that anise has estrogenic effects, while other in vitro research suggests that anise has antiestrogenic effects.
Acetaminophen (Tylenol, Others)
Theoretically, anise oil might decrease the levels and clinical effects of acetaminophen.
Animal research shows that taking anise oil with acetaminophen decreases peak plasma levels of acetaminophen but does not reduce overall bioavailability. Whether this interaction will occur in humans is unclear.
Brand information
Manufacturer and brand details for Soothe Digest, from the product label.
Soothe Digest by Natural Factors: Common Questions
Does Soothe Digest by Natural Factors interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is Soothe Digest safe to take if I'm trying to get pregnant or currently pregnant?
Can I take Soothe Digest while breastfeeding?
What is caraway supposed to help with in this supplement?
Can fennel cause allergic reactions?
Is there a risk of side effects from taking Soothe Digest?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Soothe Digest is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Soothe Digest’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Fennel
Interacts with 740 drugsFennel is a Mediterranean herb widely used as a food and spice, and traditionally taken for digestive complaints, colic, and menstrual cramps. Some small studies suggest possible benefit for...
Read the full Fennel monograph → Herb & supplement monographAnise
Interacts with 245 drugsAnise is a fragrant, licorice-flavored seed used for centuries to ease digestion and soothe coughs. Most of its health claims are based on tradition and small or laboratory studies rather th...
Read the full Anise monograph → Herb & supplement monographCaraway
Interacts with 413 drugsCaraway is a common cooking spice that has long been used to ease gas, bloating, and indigestion. Some evidence suggests caraway oil—often combined with peppermint oil—may help with indigest...
Read the full Caraway monograph →Sources & How We Checked
Soothe Digest'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 40 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.
Fennel 17 references
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Zhu M, Wong PY, Li RC. Effect of oral administration of fennel (Foeniculum vulgare) on ciprofloxacin absorption and disposition in the rat. J Pharm Pharmacol 1999;51:1391-6.
- Gral N, Beani JC, Bonnot D, et al. [Plasma levels of psoralens after celery ingestion]. Ann Dermatol Venereol 1993;120:599-603.
- Burkhard PR, Burkhardt K, Haenggeli CA, Landis T. Plant-induced seizures: reappearance of an old problem. J Neurol 1999;246:667-70. PubMed
- Rosti L, Nardini A, Bettinelli ME, Rosti D. Toxic effects of a herbal tea mixture in two newborns. Acta Paediatrica 1994;83:683. PubMed
- Cuzzolin L, Zaffani S, and Benoni G. Safety implications regarding use of phytomedicines. Eur.J Clin Pharmacol. 2006;62:37-42. PubMed
- Tognolini, M., Ballabeni, V., Bertoni, S., Bruni, R., Impicciatore, M., and Barocelli, E. Protective effect of Foeniculum vulgare essential oil and anethole in an experimental model of thrombosis. Pharmacol.Res 2007;56(3):254-260. PubMed
- Subehan, Usia, T., Iwata, H., Kadota, S., and Tezuka, Y. Mechanism-based inhibition of CYP3A4 and CYP2D6 by Indonesian medicinal plants. J Ethnopharmacol. 5-24-2006;105(3):449-455. PubMed
- Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
- Subehan, Zaidi, S. F., Kadota, S., and Tezuka, Y. Inhibition on human liver cytochrome P450 3A4 by constituents of fennel (Foeniculum vulgare): identification and characterization of a mechanism-based inactivator. J Agric.Food Chem. 12-12-2007;55(25):101 PubMed
- LEVY, S. B. Bronchial asthma due to ingestion of fennel and fennel seed. Ann.Allergy 1948;6(4):415.
- Ottolenghi, A., De Chiara, A., Arrigoni, S., Terracciano, L., and De Amici, M. [Diagnosis of food allergy caused by fruit and vegetables in children with atopic dermatitis]. Pediatr Med Chir 1995;17(6):525-530.
- Trabace L, Tucci P, Ciuffreda L, et al. "Natural" relief of pregnancy-related symptoms and neonatal outcomes: above all do no harm. J Ethnopharmacol. 2015;174:396-402. PubMed
- Denaxa D, Arkwright PD. Fennel as a cause of immediate hypersensitivity to toothpaste. Ann Allergy Asthma Immunol. 2020;125(1):99-100. PubMed
- Lee HW, Ang L, Lee MS, Alimoradi Z, Kim E. Fennel for reducing pain in primary dysmenorrhea: a systematic review and meta-analysis of randomized controlled trials. Nutrients 2020;12(11):3438. PubMed
- Mathew T, John SK, Javali M, Vasireddy M, Nadig R, Sarma GRK. Substance use related cluster headache: A case series. Headache 2022;62(7):908-910. PubMed
Anise 12 references
- 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
- Kassi E, Papoutsi Z, Fokialakis N, et al. Greek plant extracts exhibit selective estrogen receptor modulator (SERM)-like properties. J Agric Food Chem 2004;52:6956-61. PubMed
- Mumcuoglu KY, Miller J, Zamir C, et al. The in vivo pediculicidal efficacy of a natural remedy. Isr Med Assoc J 2002;4:790-3.
- Garcia-Gonzalez JJ, Bartolome-Zavala B, Fernandez-Melendez S, et al. Occupational rhinoconjunctivitis and food allergy because of aniseed sensitization. Ann Allergy Asthma Immunol 2002;88:518-22. . PubMed
- Tabanca N, Khan SI, Bedir E, et al. Estrogenic activity of isolated compounds and essential oils of Pimpinella species from Turkey, evaluated using a recombinant yeast screen. Planta Med 2004;70:728-35.
- Gonzalez-Gutierrez, M. L., Sanchez-Fernandez, C., Esteban-Lopez, M. I., Sempere-Ortells, J. M., and Diaz-Alperi, P. Allergy to anis. Allergy 2000;55(2):195-196.
- Anliker, M. D., Borelli, S., and Wuthrich, B. Occupational protein contact dermatitis from spices in a butcher: a new presentation of the mugwort-spice syndrome. Contact Dermatitis 2002;46(2):72-74. PubMed
- Poon, T. S. and Freeman, S. Cheilitis caused by contact allergy to anethole in spearmint flavoured toothpaste. Australas.J Dermatol. 2006;47(4):300-301. PubMed
- Andersen, K. E. Contact allergy to toothpaste flavors. Contact Dermatitis 1978;4(4):195-198. PubMed
- Samojlik I, Mijatovic V, Petkovic S, et al. The influence of essential oil of aniseed (Pimpinella anisum, L.) on drug effects on the central nervous system. Fitoterapia 2012;83:1466-73. PubMed
- Samojlik I, Petkovic S, Stilinovic N, et al. Pharmacokinetic herb-drug interaction between essential oil of aniseed (Pimpinella anisum L., Apiaceae) and acetaminophen and caffeine: A potential risk for clinical practice. Phytother Res 2016;30:253-9.
- Rajeshwari U, Shobha I, Andallu B. Comparison of aniseeds and coriander seeds for antidiabetic, hypolipidemic and antioxidant activities. Spatula DD-Peer Reviewed Journal on Complementary Medicine and Drug Discovery 2011;1:9-16. DOI
Caraway 11 references
- 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
- May B, Kuntz HD, Kieser M, Kohler S. Efficacy of a fixed peppermint oil/caraway oil combination in non-ulcer dyspepsia. Arzneimittelforschung 1996;46:1149-53.
- Micklefield GH, Greving I, May B. Effects of peppermint oil and caraway oil on gastroduodenal motility. Phytother Res 2000;14:20-3. DOI
- Herb Info Canada. Caraway website. www.herb.plant.org/caraway.htm (Accessed 11 September 2000).
- May B, Kohler S, Schneider B. Efficacy and tolerability of a fixed combination of peppermint oil and caraway oil in patients suffering from functional dyspepsia. Aliment Pharmacol Ther 2000;14:1671-7. PubMed
- Eddouks M, Lemhardri A, Michel JB. Caraway and caper: potential anti-hyperglycaemic plants in diabetic rats. J Ethnopharmacol 2004;94:143-8. PubMed
- Sachin BS, Monica P, Sharma SC, et al. Pharmacokinetic interaction of some antitubercular drugs with caraway: implications in the enhancement of drug bioavailability. Hum Exp Toxicol. 2009;28(4):175-84. PubMed
- Lahlou, S., Tahraoui, A., Israili, Z., and Lyoussi, B. Diuretic activity of the aqueous extracts of Carum carvi and Tanacetum vulgare in normal rats. J Ethnopharmacol. 4-4-2007;110(3):458-463. PubMed
- de Sousa, D. P., Farias Nobrega, F. F., and de Almeida, R. N. Influence of the chirality of (R)-(-)- and (S)-(+)-carvone in the central nervous system: a comparative study. Chirality 5-5-2007;19(4):264-268.
- Modu S, Gohla K Umar IA. The hypoglycaemic and hypocholrsterolaemic properties of black caraway (Carum carvi L.) oil in alloxan diabetic rats. Biokemistri (Nigeria) 1997;7:91-97.
- Rich G, Shah A, Koloski N, et al. A randomized placebo-controlled trial on the effects of Menthacarin, a proprietary peppermint- and caraway-oil-preparation, on symptoms and quality of life in patients with functional dyspepsia. Neurogastroenterol Motil 2 PubMed
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