Whole Herb Alfalfa 650 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Whole Herb Alfalfa 650 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Whole Herb Alfalfa 650 mg is a dietary supplement by Spring Valley with 1 active ingredient. Its ingredients are commonly taken for high cholesterol, digestive complaints, menopausal symptoms.Based on those ingredients, 583 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Alfalfa. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Whole Herb Alfalfa 650 mg by Spring Valley
Ask about any prescription or over-the-counter medication and we check it for interactions with Whole Herb Alfalfa 650 mg by Spring Valley — 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 Whole Herb Alfalfa 650 mg by Spring Valley
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 supplement contains one active ingredient: alfalfa leaf at 650 mg per tablet. Alfalfa is the entire above-ground plant, traditionally used as a nutritious herb.
The tablet also contains inactive ingredients — cellulose (a plant fiber used as a binder) and croscarmellose (a disintegrant that helps the tablet break down) — plus minor other ingredients making up less than 2% of the formula.
Does it work?
No specific claim
The evidence for alfalfa's effectiveness isn't established in the data we hold. Studies haven't gathered enough reliable evidence to rate how well it works for diabetes, indigestion, high cholesterol, or menopausal symptoms.
That doesn't mean it doesn't work — it means the science simply isn't there yet to confirm it.
How safe is it?
Well-documented data
Alfalfa leaf is generally well tolerated when taken by mouth, though a full safety evaluation hasn't been completed. The most common side effects are mild gastrointestinal ones: abdominal discomfort, diarrhea, flatulence, and bulkier stools — especially during the first week of use.
Rarely, chronic use has been linked to a lupus-like syndrome, and skin reactions (dermatitis) have been reported. Because alfalfa has estrogen-like activity, the safety data advises against taking it in supplement amounts during pregnancy.
There isn't enough reliable data to know whether it's safe while breastfeeding, so it's best to avoid supplement doses and talk with your doctor or pharmacist for personalized advice.
Meds to double-check
Major interaction found
Before taking this alfalfa supplement, double-check with your pharmacist if you take warfarin (Coumadin) or any blood thinner — alfalfa may reduce its effectiveness. Also important: birth control pills, hormone replacement therapy, diabetes medications, photosensitizing drugs (medications that increase sun sensitivity), or immunosuppressants after organ transplant.
The bottom line
Scorecard at a glanceFully disclosed formula marketed for general wellness rather than one specific gradeable purpose. Major medication interactions have been identified, and safety information is well characterized.
Alfalfa supplement might appeal to someone looking for traditional herbal nutrition, but it's not one to start without checking your medications first — especially if you take warfarin, birth control, hormone therapy, or diabetes drugs. If you're pregnant or breastfeeding, talk with your pharmacist before using this product.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 25, 2018.
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 Whole Herb Alfalfa 650 mg, straight from the product label.
| Brand | Spring Valley |
|---|---|
| Net contents | 300 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Jan 25, 2018 |
| DSLD ID | 82868 |
| Product type | Botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Dairy Free, Sugar 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 Whole Herb Alfalfa 650 mg by Spring Valley, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Alfalfa | 1.3 Gram(s) | -- |
Other ingredients: Cellulose, Croscarmellose, Contains <2% of:
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.
Formula
Whole Herb Alfalfa 650 mg per tablet
General Statements
General wellness
Alfalfa is a member of the "green" foods category and contains important plant nutrients for nutritional wellness.
FDA Statement of Identity
Dietary Supplement
Formulation
No yeast, no milk or milk derivatives, no lactose, no sugar, no preservatives, no soy, no artificial color, no artificial flavor, no sodium (less than 5 mg per serving), no chemical solvents
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Suggested/Recommended/Usage/Directions
Suggested Use: Adults, take two tablets three times daily, preferably with a meal.
Precautions
Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of the reach of children.
For your protection, do not use if seal under cap is broken or missing.
Storage
Store at room temperature. Keep bottle tightly closed.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Whole Herb Alfalfa 650 mg by Spring Valley 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 Whole Herb Alfalfa 650 mg by Spring Valley
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Tablet(s) Dosage formTablet Or Pill Servings per container150 Amounts shown are per serving.
Alfalfa
Interacts with583 drugs
Alfalfa is a nutrient-rich legume that people use for high cholesterol, menopause symptoms, and general wellness, but solid human evidence for most of...
Alfalfa monograph & interactionsOther (inactive) ingredients: Cellulose, Croscarmellose, Contains <2% of:. These complete the product’s ingredient list but are not active constituents.
Whole Herb Alfalfa 650 mg by Spring Valley Drug Interactions
HelloPharmacist Interaction Report
Spring Valley's Whole Herb Alfalfa has documented interactions with several important medication types.
The most serious concern is warfarin (Coumadin), a blood thinner — alfalfa is high in vitamin K, which can reduce how well warfarin works and potentially raise your clot risk.
Read the full breakdown — every affected drug type, severity by severity
Alfalfa may also interfere with birth control pills and hormone therapy (including estrogen replacement) because it contains plant compounds with estrogen-like effects. It can theoretically add to the light-sensitivity effects of photosensitizing drugs, and it may lower blood sugar, which means it could increase the risk of low blood sugar (hypoglycemia) if you're taking diabetes medications.
There's also a theoretical concern that alfalfa might reduce the effectiveness of immunosuppressant drugs used after transplants or for certain autoimmune conditions.
Because this product has interactions documented across multiple medication types, please check your exact medications using the search tool on this page. Altogether, these interactions span 577 individual medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Whole Herb Alfalfa 650 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Whole Herb Alfalfa 650 mg interact with 583 drugs. Click any drug to see the details.
1 of the 1 ingredient in Whole Herb Alfalfa 650 mg interact with drugs. Each result below shows which ingredient is responsible. Alfalfa
WarfarinWarfarin
How Warfarin interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaWarfarin (coumadin) Major
Interaction Summary
Theoretically, alfalfa might reduce the anticoagulant activity of warfarin.
Read the full Alfalfa + Warfarin interactionWarfarin SodiumCoumadin, Panwarfin, Sofarin
How Warfarin Sodium interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaWarfarin (coumadin) Major
Interaction Summary
Theoretically, alfalfa might reduce the anticoagulant activity of warfarin.
Read the full Alfalfa + Warfarin Sodium interaction6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaImmunosuppressants Moderate
Interaction Summary
Theoretically, alfalfa might decrease the efficacy of immunosuppressive therapy.
Read the full Alfalfa + 6-mercaptopurine interactionAbrocitinibCibinqo
How Abrocitinib interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaImmunosuppressants Moderate
Interaction Summary
Theoretically, alfalfa might decrease the efficacy of immunosuppressive therapy.
Read the full Alfalfa + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, alfalfa might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Alfalfa + Acarbose interactionAcepromazineAtravet
How Acepromazine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acepromazine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + 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 Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, Dexbrompheniramine, PseudoephedrineSinadrin Plus
How Acetaminophen, Dexbrompheniramine, Pseudoephedrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Dexbrompheniramine, Pseudoephedrine interactionAcetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Ibuprofen interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs, Antidiabetes Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acetohexamide interactionAcitretinSoriatane
How Acitretin interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaPhotosensitizing Drugs Moderate
Interaction Summary
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Read the full Alfalfa + Acitretin interactionAdalimumabHumira
How Adalimumab interacts with Whole Herb Alfalfa 650 mg — through 1 ingredient. Tap an ingredient for the detail:
AlfalfaImmunosuppressants Moderate
Interaction Summary
Theoretically, alfalfa might decrease the efficacy of immunosuppressive therapy.
Read the full Alfalfa + Adalimumab interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Whole Herb Alfalfa 650 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Alfalfa
Warfarin (Coumadin)
Theoretically, alfalfa might reduce the anticoagulant activity of warfarin.
Alfalfa contains a large amount of vitamin K. This could theoretically interfere with the activity of warfarin.
Antidiabetes Drugs
Theoretically, alfalfa might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research suggests that alfalfa decreases blood sugar in diabetic mice. Also, in one case report, a diabetic patient experienced hypoglycemia after consuming alfalfa extract. Monitor blood glucose levels closely. Dose adjustments might be necessary.
Contraceptive Drugs
Theoretically, alfalfa might interfere with the activity of contraceptive drugs.
Alfalfa contains coumestrol, a phytoestrogen, and isoflavonoids, which have estrogenic effects.
Estrogens
Theoretically, alfalfa might interfere with hormone therapy.
Alfalfa contains coumestrol, a phytoestrogen, and isoflavonoids, which have estrogenic effects.
Immunosuppressants
Theoretically, alfalfa might decrease the efficacy of immunosuppressive therapy.
In vitro research and human case reports suggest that alfalfa may have immunostimulant effects.
Photosensitizing Drugs
Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Animal research suggests that excessive doses of alfalfa may increase photosensitivity, possibly due to its chlorophyll content. It is unclear if this effect would be clinically relevant in humans.
Brand information
Manufacturer and brand details for Whole Herb Alfalfa 650 mg, from the product label.
Whole Herb Alfalfa 650 mg by Spring Valley: Common Questions
Does Whole Herb Alfalfa 650 mg by Spring Valley interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is alfalfa, and why is it in supplements?
Can I take this if I'm pregnant or nursing?
What side effects might I notice?
Does alfalfa actually lower blood sugar?
Why is warfarin such a big concern with this product?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Whole Herb Alfalfa 650 mg 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 Whole Herb Alfalfa 650 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Whole Herb Alfalfa 650 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- 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 32 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Alfalfa 32 references
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- Kurzer MS, Xu X. Dietary phytoestrogens. Annu Rev Nutr 1997;17:353-81. PubMed
- Farber JM, Carter AO, Varughese PV, et al. Listeriosis traced to the consumption of alfalfa tablets and soft cheese [Letter to the Editor]. N Engl J Med 1990;322:338. PubMed
- Molgaard J, von Schenck H, Olsson AG. Alfalfa seeds lower low density lipoprotein cholesterol and apolipoprotein B concentrations in patients with type II hyperlipoproteinemia. Atherosclerosis 1987;65:173-9. PubMed
- Light TD, Light JA. Acute renal transplant rejection possibly related to herbal medications. Am J Transplant 2003;3:1608-9. PubMed
- Prete PE. The mechanism of action of L-canavanine in inducing autoimmune phenomena. Arthritis Rheum 1985;28:1198-200. PubMed
- Alcocer-Varela J, Iglesias A, Llorente L, Alarcon-Segovia D. Effects of L-canavanine on T cells may explain the induction of systemic lupus erythematosus by alfalfa. Arthritis Rheum 1985;28:52-7. PubMed
- Roberts JL, Hayashi JA. Exacerbation of SLE associated with alfalfa ingestion. N Engl J Med 1983;308:1361. DOI
- Feingold, R. M. Should we fear "health foods"? Arch Intern Med 7-12-1999;159(13):1502. PubMed
- Taormina, P. J., Beuchat, L. R., and Slutsker, L. Infections associated with eating seed sprouts: an international concern. Emerg.Infect.Dis 1999;5(5):626-634. PubMed
- Backer, H. D., Mohle-Boetani, J. C., Werner, S. B., Abbott, S. L., Farrar, J., and Vugia, D. J. High incidence of extra-intestinal infections in a Salmonella Havana outbreak associated with alfalfa sprouts. Public Health Rep. 2000;115(4):339-345. PubMed
- Mohle-Boetani J, Werner B, Polumbo M, and et al. From the Centers for Disease Control and Prevention. Alfalfa sprouts-- Arizona, California, Colorado, and New Mexico, February-April, 2001. JAMA 2-6-2002;287(5):581-582.
- Howard, M. B. and Hutcheson, S. W. Growth dynamics of Salmonella enterica strains on alfalfa sprouts and in waste seed irrigation water. Appl.Environ.Microbiol. 2003;69(1):548-553.
- Winthrop, K. L., Palumbo, M. S., Farrar, J. A., Mohle-Boetani, J. C., Abbott, S., Beatty, M. E., Inami, G., and Werner, S. B. Alfalfa sprouts and Salmonella Kottbus infection: a multistate outbreak following inadequate seed disinfection with heat and chl
- Strapp, C. M., Shearer, A. E., and Joerger, R. D. Survey of retail alfalfa sprouts and mushrooms for the presence of Escherichia coil O157:H7, Salmonella, and Listeria with BAX, and evaluation of this polymerase chain reaction-based system with experimen
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