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Dietary supplement

Celery Seed Ingredients & Drug Interactions

by Natural Factors

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

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

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

The interaction bottom line Most serious interaction: Moderate

Celery Seed is a dietary supplement by Natural Factors with 1 active ingredient. Its ingredients are commonly taken for high blood pressure, fluid retention (diuretic), joint pain and inflammation.Based on those ingredients, 651 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Celery extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Celery Seed by Natural Factors

Ask about any prescription or over-the-counter medication and we check it for interactions with Celery Seed by Natural Factors — and tell you which ingredient is responsible.

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Computed from our clinical databases

HelloPharmacist Scorecard of Celery Seed by Natural Factors

Four independent checks of what is known — a summary of the available information, not a grade of the product itself.

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

None of the active ingredients could be matched to our evidence database, so intended use can't be graded.

Why this rating?
  • None of the active ingredients could be matched to a HelloPharmacist monograph, so intended use can't be graded against our evidence data.
Ingredient Transparency
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • “Celery extract” is listed as a grouped ingredient — the label gives one combined amount (75 mg) without saying how much of each component you get.
Known Interaction Concern
Not assessable

None of the active ingredients could be matched to our interaction database.

Why this rating?
  • We couldn't match any ingredient to a HelloPharmacist monograph, so there was nothing to check interactions against.
Safety Information
Unable to assess

None of the active ingredients could be matched to our safety data.

Why this rating?
  • We couldn't match any ingredient to a HelloPharmacist monograph, so there was no safety data to measure.

HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Medication interactions could not be assessed, and safety information could not be assessed.

Assessment coverage: 0 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated May 22, 2021.

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

At a glance

General information

Key facts about Celery Seed, straight from the product label.

Brand Natural Factors
Barcode (UPC) 068958045115
Net contents 120 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD May 22, 2021
DSLD ID 247478
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Celery Seed by Natural Factors, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
UPC/BARCODE
068958045115
IngredientAmount% DV
Celery extract75 mg--
3-N-Butylphthalide63.75 mg--

Other ingredients: Rice powder, Vegetarian Capsule, Magnesium Stearate

Tap any ingredient to jump to its full detail below.

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

isura Non-GMO - Mass spec Documentation - Lab tested

Purity & potency guaranteed

Suggested/Recommended/Usage/Directions

Suggested Usage: 1 capsule 2 times per day or as directed by a health professional.

Precautions

Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery.

Keep out of the reach of children.

Sealed for your protection. Do not use if seal is broken.

Formula

Celery Seed Extract consists of 3-n-butylphthalide as total phthalides (85%) a beneficial compound unique to celery providing natural support for the circulatory system.

Celery seed standardized extract 85% 3-n-Butylphthalide

85% 3-n-Butylphthalide

General Statements

Traditionally used by herbalists as a carminative and to promote circulatory and cardiovascular health. Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

Recyclable container and label.

Healthy circulatory system

Formulation

Contains no artificial colors, preservatives, or sweeteners; no dairy, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.

Suitable for vegetarians/vegans.

Standarized extract

Storage

For freshness, store in a cool, dry place.

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.

FDA Statement of Identity

Dietary Supplement

Brand IP Statement(s)

Isura is a trademark of ISURA.

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

See for yourself

Celery Seed by Natural Factors label

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

Celery Seed label

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

View the full label (PDF)
What’s inside

The Ingredients in Celery Seed by Natural Factors

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

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

Celery extract

Interacts with
651 drugs
75 mg per serving

Celery is a common vegetable that is also taken as a seed extract or oil supplement, mainly for blood pressure, fluid retention, and joint discomfort....

Celery extract monograph & interactions
  • › 3-N-Butylphthalide

Other (inactive) ingredients: Rice powder, Vegetarian Capsule, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Celery Seed by Natural Factors Drug Interactions

Celery Seed contains a single active ingredient, and it has known interactions with 651 medications. Here’s the picture, then you can look up your own drug.

Want to check YOUR meds against Celery Seed?

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

 Go to the checker
651Drugs
449 Moderate 202 Minor

Ingredients driving the most interactions

Celery extract 651

Individual Drug Interactions

The ingredients in Celery Seed interact with 651 drugs. Click any drug to see the details.

1 of the 1 ingredient in Celery Seed interact with drugs. Each result below shows which ingredient is responsible. Celery extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Celery Seed 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.

Celery extract8 drug types · 651 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, celery root might increase the risk of bleeding when taken with anticoagulant/antiplatelet drugs.
Celery root contains the constituents falcarinol and falcarindiol. Laboratory research suggests that these constituents can inhibit platelet aggregation. This effect has not been reported in humans.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, celery seed extract might have additive effects with antihypertensive drugs.
Clinical research suggests that taking celery seed extract may reduce daytime systolic blood pressure by about 12 mmHg compared to less than 1 mmHg with placebo.

Likelihood Probable Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, celery might increase levels of drugs metabolized by CYP1A2.
In vitro and animal research suggests that constituents of celery can inhibit CYP1A2. This effect has not been reported in humans.

Likelihood Possible Evidence D
Levothyroxine (Synthroid, Others)

Theoretically, celery seed might decrease the effects of levothyroxine.
Several cases of hypothyroidism with low T4 levels have been reported in people who were previously stabilized on levothyroxine and then started taking celery seed tablets. They presented with symptoms such as lethargy, bloating, and dry skin, and recovered when celery seed was stopped. However, celery stem and leaf has been associated with case reports of hyperthyroidism in patients with no pre-existing thyroid disorders.

Likelihood Possible Evidence D
Lithium

Theoretically, celery might reduce excretion and increase levels of lithium due to potential diuretic effects.
Celery is thought to have diuretic properties. However, this effect has not been confirmed in humans.

Likelihood Probable Evidence D
Venlafaxine (Effexor)

Theoretically, celery root extract might increase blood levels of venlafaxine.
There is one case report of a patient who experienced medication-induced bipolar disorder after beginning to take celery root extract 1000 mg daily along with venlafaxine 75 mg and St. John's wort 600 mg daily. Symptoms included confusion, speech abnormalities, manic affect, and visual hallucinations. The plasma level of venlafaxine was 476.8 ng/mL (normal range 195-400 ng/mL). It is theorized that celery root increased venlafaxine levels by inhibiting cytochrome P450 2D6.

Likelihood Possible Evidence D
Acetaminophen (Tylenol, Others)

Theoretically, celery juice might increase the effects and side effects of acetaminophen.
Animal research suggests that concomitant use of celery juice plus acetaminophen prolongs the effects of acetaminophen. This effect has been attributed to a decrease in hepatic cytochrome P450 activity. However, other animal research shows that pretreatment with celery root extract protects against acetaminophen-induced acute liver failure. These effects have not been reported in humans.

Likelihood Possible Evidence D
Photosensitizing Drugs

Theoretically, celery might increase the risk of photosensitivity reactions when taken with photosensitizing drugs.
Laboratory research shows that celery contains photosensitizing agents such as phenols and psoralens.

Likelihood Possible Evidence D
Celery extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Celery Seed, from the product label.

Natural Factors

See all Natural Factors products
Name
Natural Factors
Street Address
14224 167th Avenue SE
City
Monroe
State
WA
ZipCode
98272
Pharmacist Counseling Corner

Celery Seed by Natural Factors: Common Questions

Does Celery Seed by Natural Factors interact with any medications?
Yes. Based on its ingredients, Celery Seed has a known interaction with 651 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Celery Seed contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.

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.

Celery Seed label
Go deeper

The Full Monographs Behind Celery Seed’s Ingredients

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

Herb & supplement monograph

Celery

Interacts with 651 drugs

Celery is a common vegetable that is also taken as a seed extract or oil supplement, mainly for blood pressure, fluid retention, and joint discomfort. Human evidence for these supplement use...

Read the full Celery monograph →
Sources

Sources & How We Checked

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

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

The 48 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.

Celery 48 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Heck AM, DeWitt BA, Lukes AL. Potential interactions between alternative therapies and warfarin. Am J Health Syst Pharm 2000;57:1221-7. DOI
  5. Gral N, Beani JC, Bonnot D, et al. [Plasma levels of psoralens after celery ingestion]. Ann Dermatol Venereol 1993;120:599-603.
  6. Moses, G. Thyroxine interacts with celery seed tablets? Australian Prescriber 2001;24:6-7. DOI
  7. Ciganda C, and Laborde A. Herbal infusions used for induced abortion. J Toxicol.Clin Toxicol. 2003;41:235-239. PubMed
  8. Jakovljevic, V., Raskovic, A., Popovic, M., and Sabo, J. The effect of celery and parsley juices on pharmacodynamic activity of drugs involving cytochrome P450 in their metabolism. Eur.J Drug Metab Pharmacokinet. 2002;27(3):153-156. PubMed
  9. Wang, L., Sterling, B., and Don, P. Berloque dermatitis induced by "Florida water". Cutis 2002;70(1):29-30.
  10. Weber, I. C., Davis, C. P., and Greeson, D. M. Phytophotodermatitis: the other "lime" disease. J Emerg.Med 1999;17(2):235-237. PubMed
  11. Rueff, F., Eberlein-Konig, B., and Przybilla, B. Oral hyposensitization with celery juice. Allergy 2001;56(1):82-83. PubMed
  12. Lombaert, G. A., Siemens, K. H., Pellaers, P., Mankotia, M., and Ng, W. Furanocoumarins in celery and parsnips: method and multiyear Canadian survey. J AOAC Int 2001;84(4):1135-1143. DOI
  13. Ballmer-Weber, B. K., Hoffmann, A., Wuthrich, B., Luttkopf, D., Pompei, C., Wangorsch, A., Kastner, M., and Vieths, S. Influence of food processing on the allergenicity of celery: DBPCFC with celery spice and cooked celery in patients with celery allergy PubMed
  14. Hoerler, S. and Ukiwe, J. Laryngeal edema from celery allergic reaction. Am.J.Emerg.Med. 1992;10(6):613. PubMed
  15. DeLeo, V. A. Photocontact dermatitis. Dermatol Ther 2004;17(4):279-288. PubMed
  16. Groot, B. J., Belinfante-van Gelder, M. E., and Jans, H. W. [An epidemic of dermatitis caused by blanched celery]. Ned.Tijdschr.Geneeskd. 6-20-1992;136(25):1210-1213.
  17. Erdmann, S. M., Sachs, B., Schmidt, A., Merk, H. F., Scheiner, O., Moll-Slodowy, S., Sauer, I., Kwiecien, R., Maderegger, B., and Hoffmann-Sommergruber, K. In vitro analysis of birch-pollen-associated food allergy by use of recombinant allergens in the b
  18. Jeanmougin, M., Varroud-Vial, C., and Dubertret, L. [Phototoxic side-effect following celery ingestion during puvatherapy]. Ann.Dermatol Venereol 2005;132(6-7 Pt 1):566-567.
  19. Christensen, L. P. and Brandt, K. Bioactive polyacetylenes in food plants of the Apiaceae family: occurrence, bioactivity and analysis. J Pharm.Biomed.Anal. 6-7-2006;41(3):683-693. PubMed
  20. Gorgus, E., Lohr, C., Raquet, N., Guth, S., and Schrenk, D. Limettin and furocoumarins in beverages containing citrus juices or extracts. Food Chem.Toxicol. 2010;48(1):93-98. PubMed
  21. Maso, M. J., Ruszkowski, A. M., Bauerle, J., DeLeo, V. A., and Gasparro, F. P. Celery phytophotodermatitis in a chef. Arch.Dermatol. 1991;127(6):912-913. DOI
  22. Ljunggren, B. Severe phototoxic burn following celery ingestion. Arch.Dermatol. 1990;126(10):1334-1336. DOI
  23. Held, J. L. Phytophotodermatitis. Am Fam.Physician 1989;39(4):143-146.
  24. Silverstein, S. R., Frommer, D. A., Dobozin, B., and Rosen, P. Celery-dependent exercise-induced anaphylaxis. J.Emerg.Med. 1986;4(3):195-199. PubMed
  25. Rose, M. H. and Altman, L. C. Anaphylaxis after ingestion of raw celery. Ann.Allergy 1985;54(2):166.
  26. Forsbeck, M. and Ros, A. M. Anaphylactoid reaction to celery. Contact Dermatitis 1979;5(3):191. PubMed
  27. DeChamp, C., Michel, J., Deviller, P., and Perrin, L. F. [Anaphylactic shock to celery and sensitization to ragweed and mugwort. Crossed or concomitant allergy?]. Presse Med. 3-31-1984;13(14):871-874.
  28. Johansson, S. G., Dannaeus, A., and Lilja, G. The relevance of anti-food antibodies for the diagnosis of food allergy. Ann.Allergy 1984;53(6 Pt 2):665-672.
  29. Beier, R. C., Ivie, G. W., Oertli, E. H., and Holt, D. L. HPLC analysis of linear furocoumarins (psoralens) in healthy celery (Apium graveolens). Food Chem.Toxicol. 1983;21(2):163-165. PubMed
  30. Kidd, J. M., III, Cohen, S. H., Sosman, A. J., and Fink, J. N. Food-dependent exercise-induced anaphylaxis. J Allergy Clin Immunol 1983;71(4):407-411. PubMed
  31. Moneret-Vautrin, D. A. and Kanny, G. [Food-induced anaphylaxis. A new French multicenter survey]. Ann.Gastroenterol Hepatol (Paris) 1995;31(4):256-263.
  32. Bonnin, J. P., Grezard, P., Colin, L., and Perrot, H. [A very significant case of allergy to celery]. Allerg.Immunol.(Paris) 1995;27(6):209.
  33. Bonnin, J. P., Grezard, P., Colin, L., and Perrot, H. [A very significant case of allergy to celery cross-reacting with ragweed]. Allerg.Immunol.(Paris) 1995;27(3):91-93.
  34. Moneret-Vautrin, D. A. and Kanny, G. [Food-induced anaphylaxis. A new French multicenter study]. Bull.Acad.Natl.Med 1995;179(1):161-184.
  35. Puig, L. and de Moragas, J. M. Enhancement of PUVA phototoxic effects following celery ingestion: cool broth also can burn. Arch.Dermatol. 1994;130(6):809-810. DOI
  36. Egan, C. L. and Sterling, G. Phytophotodermatitis: a visit to Margaritaville. Cutis 1993;51(1):41-42.
  37. Boffa, M. J., Gilmour, E., and Ead, R. D. Celery soup causing severe phototoxicity during PUVA therapy. Br.J.Dermatol. 1996;135(2):334.
  38. Wuthrich, B., Borga, A., and Yman, L. Oral allergy syndrome to a jackfruit (Artocarpus integrifolia). Allergy 1997;52(4):428-431.
  39. Peterson, S., Lampe, J. W., Bammler, T. K., Gross-Steinmeyer, K., and Eaton, D. L. Apiaceous vegetable constituents inhibit human cytochrome P-450 1A2 (hCYP1A2) activity and hCYP1A2-mediated mutagenicity of aflatoxin B1. Food Chem.Toxicol. 2006;44(9):147 PubMed
  40. Baek CH, Bae YJ, Cho YS, Moon HB, Kim TB. Food-dependent exercise-induced anaphylaxis in the celery-mugwort-birch-spice syndrome. Allergy. 2010;65(6):792-3. PubMed
  41. Khalid Z, Osuagwu FC, Shah B, Roy N, Dillon JE, Bradley R. Celery root extract as an inducer of mania induction in a patient on venlafaxine and St John's Wort. Postgrad Med. 2016;128(7):682-3. PubMed
  42. Palgan K, Götz-Zbikowska M, Tykwinska M, Napiórkowska K, Bartuzi Z. Celery-cause of severe anaphylactic shock. Postepy Hig Med Dosw (Online). 2012;66:132-4.
  43. Maljaei MB, Moosavian SP, Mirmosayyeb O, Rouhani MH, Namjoo I, Bahreini A. Effect of celery extract on thyroid function; is herbal therapy safe in obesity? Int J Prev Med 2019;10:55. doi: 10.4103/ijpvm.IJPVM_209_17. PubMed
  44. Rouhi-Boroujeni H, Hosseini M, Gharipour M, Rouhi-Boroujeni H. Is herbal therapy safe in obesity? A case of Apium graveolens (Celery) induced hyperthyroidism. ARYA Atheroscler 2016;12(5):248-9.
  45. Emad AM, Ali SF, Abdel-Rahman EA, et al. Anti-inflammatory and antioxidant effects of Apium graveolens L. extracts mitigate against fatal acetaminophen-induced acute liver toxicity. J Food Biochem 2020:e13399. Online ahead of print.
  46. Shayani Rad M, Moohebati M, Mohajeri SA. Effect of celery (Apium graveolens) seed extract on hypertension: A randomized, triple-blind, placebo-controlled, cross-over, clinical trial. Phytother Res 2022.
  47. Azimi M, Zahedi MJ, Raeiszadeh M, Iraji A, Cramer H, Pasalar M. Efficacy and Safety of a Persian Medicine Formula on Functional Dyspepsia Symptoms: A Randomized Double-Blind Active-Control Clinical Trial. Complement Med Res 2023;30(3):238-247. PubMed
  48. Ukleja-Sokolowska N, Lis K, Graczyk M, Bartuzi M, Bartuzi Z. The use of inhibition assay in Api g 7 suspected allergy in a female patient with anaphylaxis: A case report. Int J Immunopathol Pharmacol 2024;38:3946320231223004. PubMed

See these in context on the Celery monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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