Drug & supplement interaction

Wild Carrot + Nifedipine

Nifedipine brand names: Procardia XL, Adalat PA, Adalat, Nifedin, Nifed PA, and others.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Nifedipine falls into 2 drug categories that Wild Carrot can interact with; the most serious is rated moderate. Theoretically, excessive doses of wild carrot seed oil might interfere with antihypertensive therapy due to cardiotonic effects.

Read the full interaction report
SeverityModerate
LikelihoodProbable
Interactions2
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Wild Carrot and Nifedipine

These two interact in 2 distinct ways. Each one is explained separately below.

Why Are There 2 Interactions?

Wild Carrot interacts with whole categories of medication. Nifedipine falls into 2 of those categories, so it can interact with Wild Carrot in 2 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).

Moderate

ANTIHYPERTENSIVE DRUGS

1 of 2

Why this applies to Nifedipine

Nifedipine falls under ANTIHYPERTENSIVE DRUGS — the group Wild Carrot interacts with.

Theoretically, excessive doses of wild carrot seed oil might interfere with antihypertensive therapy due to cardiotonic effects.
Severity Moderate Likelihood Probable Evidence D

Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports..

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the gist for nifedipine: it's a calcium-channel blocker that relaxes your blood vessels to bring your blood pressure down and ease chest pain. The concern with wild carrot is that, in theory, large amounts of the seed oil may have heart-stimulating ("cardiotonic") effects that could nudge your blood pressure or heart in the opposite direction, working against what nifedipine is trying to do.

I want to be honest: this is a theoretical idea based on the plant's chemistry, not from solid human studies, and it would mainly apply to concentrated seed-oil supplements rather than tiny culinary amounts. Still, since blood pressure is worth keeping steady, check with your pharmacist or doctor before adding wild carrot, and don't change your nifedipine on your own.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
Moderate

PHOTOSENSITIZING DRUGS

2 of 2

Nifedipine also falls under PHOTOSENSITIZING DRUGS.

Theoretically, concomitant use might result in increased photosensitivity. Some drugs that cause photosensitivity include amitriptyline (Elavil), quinolones (Ciprofloxacin, others), sulfa drugs (Septra, Bactrim, others), and tetracycline.
Severity Moderate Likelihood Probable Evidence D

Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports..

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the gist for nifedipine and wild carrot. This isn't about the herb changing your blood pressure medicine's levels or how strong it works. Instead, both can make your skin a little more sensitive to sunlight. Nifedipine on its own can occasionally cause sun-related rashes or sunburn-like reactions, and certain compounds in wild carrot may do the same. Put them together and, in theory, you could burn faster than usual.

I want to be honest that this is a theoretical concern based on how these substances behave, not proven by solid human studies, so don't be alarmed. If you do use wild carrot, just be smart in the sun: sunscreen, a hat, and shade. Check with your pharmacist or doctor before adding it.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Wild Carrot Also Interacts With Other Medications

Wild Carrot has 474 moderate known drug interactions in our database — the Nifedipine one above is among them. If you take anything else, check it against the full list below.

Moderate 474 No known interaction 2,356 (incl. Nifedipine)
Taking anything else?

Check Another of Your Medications Against Wild Carrot

Covers the 2,830 medications we’ve checked against Wild Carrot. Pick one to open its full report.

From our Q&A

Questions About Wild Carrot or Nifedipine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Wild Carrot or Nifedipine, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Nifedipine

This page covers Wild Carrot only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Nifedipine page lists 273 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Beer (major) and Coca (major).

By severity: 11 major · 223 moderate · 39 minor.

From our pharmacist’s overview on the Nifedipine page

“Nifedipine (Procardia XL, Adalat) relaxes blood vessels to lower blood pressure and ease chest pain, and I would handle this list with real care, since 11 of its 273 entries carry a major rating. Grapefruit is the one to know cold.”

Reviewed by 2 · Jul 18, 2026

Open the Nifedipine interaction page

One more smart check

Taking Wild Carrot as Part of a Dietary Supplement Product? Check It for Interactions

We hold 7 real supplement products containing Wild Carrot, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Wild Carrot. Your product may carry other ingredients that interact with Nifedipine too, on top of Wild Carrot — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Wild Carrot and Nifedipine Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Wild Carrot
Steady interest

#940 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Nifedipine
Top half

#812 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Supplement

About Wild Carrot

What is Wild Carrot?

Wild Carrot
  • Urinary and bladder complaints
  • Digestive upset and gas
  • Menstrual support
  • Supporting milk production
  • Mild diuretic (water pill) effect

Wild carrot is a traditional herb (the wild ancestor of the garden carrot) used mostly for urinary, digestive, and menstrual complaints. High-quality human studies are lacking, so its benefits are unproven, and it should be avoided in pregnancy because of traditional use to affect the uterus. Talk with your pharmacist or doctor before using it.

Read the full Wild Carrot monograph & all interactions
Medication

About Nifedipine

What Is Nifedipine Used For?

Brand names: Procardia XL, Adalat PA, Adalat, Nifedin, Nifed PA, Nifed, Procardia, Adalat XL, Adalat CC, Adalat LA, Adalat Retard, Adipine MR, Adipine XL, Cardilate MR, Coracten SR, Coracten XL, Fortipine LA 40, Hypolar Retard 20, Nifedipress MR, Nifopress Retard, Tensipine MR

Nifedipine treats high blood pressure (hypertension), chronic stable angina (chest pain brought on by physical effort), and vasospastic angina (chest pain caused by spasm of the coronary arteries, sometimes called Prinzmetal's angina). Lowering blood pressure with nifedipine helps reduce the risk of strokes and heart attacks.

The capsule form is approved for vasospastic angina and chronic stable angina only — it is not approved for high blood pressure. The extended-release tablet (including Procardia) covers all three uses: vasospastic angina, chronic stable angina, and high blood pressure.

See full Nifedipine drug information
Keep checking

Other Drugs & Wild Carrot

Browse every other medication we’ve checked against Wild Carrot — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
474Moderate
0Minor
2,355No known interaction
474 Moderate 2,355 No interaction
Moderate

474 interactions

Showing 60 of 474 moderate interactions — see all 474 on the Wild Carrot page.

No interaction 2,355 drugs checked — show the list

We also checked Wild Carrot against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,355 medications checked with no known interaction — see the full Wild Carrot list.

See the full Wild Carrot interactions page
See every supplement checked against Nifedipine, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

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

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

Keep exploring
Wild Carrot monograph › Uses, safety, and every drug interaction in one place Nifedipine supplement interactions › Every supplement checked against Nifedipine, ranked by severity Nifedipine drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Wild Carrot and Nifedipine Together: Common Questions

Can you take Wild Carrot with Nifedipine?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
Why are there 2 interactions listed for Wild Carrot and Nifedipine?
Nifedipine belongs to more than one drug category, and Wild Carrot interacts with each of those categories a little differently. We list every one so nothing is missed — your overall risk is driven by the most serious of them.
How serious is the Wild Carrot and Nifedipine interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Nifedipine and Wild Carrot?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.