Drug & supplement interaction

Wild Carrot + Nafcillin

Nafcillin brand name: Nallpen.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Wild Carrot and Nafcillin in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Wild Carrot and Nafcillin

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Nafcillin and Wild Carrot in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Wild Carrot safety at a glance

Wild Carrot overall Use caution Generally used in folk medicine, but human safety data are limited and the seeds may carry more risk.
Pregnancy Likely Unsafe When used orally. The seeds, oil, and above ground parts can cause uterine stimulant, abortifacient, and menstrual stimulant effects. BREAST-FEEDING: Read the full pregnancy detail
Breastfeeding Avoid Not enough safety information is available, so it is best avoided while breastfeeding.

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Nafcillin and Wild Carrot? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Nafcillin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Nafcillin is filed under 4 classifications — including cytochrome p450 3a4 (cyp3a4) inducers, antibiotic drugs, nephrotoxic drugs. Wild Carrot has documented interactions with 4 drug classes — the most serious being antihypertensive drugs (moderate), estrogens (moderate) and lithium (moderate) — and none of Nafcillin’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Wild Carrot Does Interact With Other Medications

Wild Carrot has 475 moderate known drug interactions in our database — Nafcillin isn’t one of them. If you take anything else, check it against the full list below.

Moderate 475 No known interaction 2,355 (incl. Nafcillin)
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.

What to actually watch for

No Interaction Found — But Data Suggests Wild Carrot and Nafcillin May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • An allergic reaction Worth acting on Additional detail

    Wild Carrot

    “Orally, excessive doses of wild carrot seed oil might cause renal irritation or neurological effects. Hypersensitivity reactions and increased sensitivity to UV light and sunburn might also occur (4,19).

    Topically, contact with the plant can cause dermatitis (4).”

    Wild Carrot · Natural Medicines adverse-effect record, reported in dermatitis.

    2 sources cited
    1. 4. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
    2. 19. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

    “Orally, wild carrot seed oil might cause hypersensitivity reactions and increased sensitivity to UV light and sunburn (4,19).”

    Wild Carrot · Natural Medicines adverse-effect record, reported in sunburn.

    2 sources cited
    1. 4. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
    2. 19. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

    Nafcillin

    Listed in the ADVERSE REACTIONS section of the FDA label for Nafcillin. Read the label on DailyMed ›

  • A skin rash reported in 6.1% of FDA reports for Nafcillin Additional detail

    Wild Carrot

    “Topically, contact with the plant can cause dermatitis (4).”

    Wild Carrot · Natural Medicines adverse-effect record, reported in dermatitis.

    1 source cited
    1. 4. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.

    Nafcillin

    Listed in the ADVERSE REACTIONS section of the FDA label for Nafcillin, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Wild Carrot but not commonly for Nafcillin: sun sensitivity.

Effects for Nafcillin come from the ADVERSE REACTIONS section of its FDA label; effects for Wild Carrot come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 918 voluntary FDA FAERS reports for Nafcillin that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Wild Carrot in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally. The seeds, oil, and above ground parts can cause uterine stimulant, abortifacient, and menstrual stimulant effects. BREAST-FEEDING:

Pregnancy Possibly Unsafe

When the seed oil is used orally. Wild carrot seed oil has mild estrogenic activity and irritant effects. There is insufficient reliable information available about the safety of the oral use of the seeds or above ground parts during lactation.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Everything else you take

See Every Supplement That Interacts With Nafcillin

This page covers Wild Carrot only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Nafcillin page lists 58 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Asarabacca (major), Siberian Cocklebur (major), Alkanna (moderate), Alpine Ragwort (moderate) and Aristolochia (moderate).

By severity: 2 major · 54 moderate · 2 minor.

From our pharmacist’s overview on the Nafcillin page

“Anyone on nafcillin (Nallpen) is usually fighting a serious staph infection, and that makes this a time to be genuinely careful with supplements. Of the 58 with a known interaction on file, the two rated major, Siberian cocklebur and asarabacca, both stress the kidneys and could compound damage while you are being treated.”

Reviewed by 2 · Jul 18, 2026

Open the Nafcillin 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. Even though Wild Carrot itself has no known interaction with Nafcillin, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Wild Carrot and Nafcillin 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

#1,073 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Nafcillin
Steady interest

#2,713 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.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Wild Carrot reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Wild Carrot and Nafcillin records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
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.

Daucus carota · Apiaceae · Seeds, root, leaves, and flowers; sometimes the essential oil · Tea, dried herb, tincture, capsules, seed extract, essential oil

An interaction check asks whether these two react with each other — it does not ask whether Wild Carrot is a good idea for someone in your situation. Here is what our Wild Carrot record says about it on its own.

Wild Carrot: dosing

There is no well-established, standardized dose for wild carrot. Traditional preparations vary widely, and the strength of teas, tinctures, capsules, and seed extracts is not consistent between products.If you choose to use a wild carrot product, follow the directions on the label and do not exceed the recommended amount. Because quality and potency can differ, choose products from reputable brands.

From our Wild Carrot monograph — the full record covers uses, side effects and every documented interaction.

Read the full Wild Carrot monograph & all interactions
Medication

About Nafcillin Injection

What Is Nafcillin Injection Used For?

Brand name: Nallpen

NAFCILLIN Injection is used to treat infections caused by staphylococci — specifically strains that produce an enzyme called penicillinase, which makes them resistant to regular penicillin. Susceptibility testing is performed to confirm the bacteria will respond to nafcillin before or shortly after starting treatment.

Nafcillin may also be started right away when a resistant staph infection is strongly suspected, even before test results are available. It should not be used for infections caused by bacteria that would respond to standard penicillin G, or for infections caused by non-staph organisms.

Most-Reported Side Effects for Nafcillin

From FAERS, the FDA’s public side-effect reporting system (918 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Renal failure acute 64 reports
Rash 56 reports
Acute kidney injury 49 reports
Fever 44 reports
Tubulointerstitial nephritis 43 reports
See full Nafcillin Injection 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
475Moderate
0Minor
2,354No known interaction
475 Moderate 2,354 No interaction
Moderate

475 interactions

Showing 60 of 475 moderate interactions — see all 475 on the Wild Carrot page.

No interaction 2,354 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 2,354 medications checked with no known interaction — see the full Wild Carrot list.

See the full Wild Carrot interactions page
See every supplement checked against Nafcillin, ranked by severity
Evidence & sources

Wild Carrot References

The 2 references that drive our Wild Carrot monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Wild Carrot and Nafcillin Together: Common Questions

Is it safe to take Wild Carrot with Nafcillin?
We do not list a known interaction between Wild Carrot and Nafcillin. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Wild Carrot and Nafcillin have any of the same side effects?
Yes — our sources link each of them separately to 2 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
How was the Wild Carrot and Nafcillin combination checked?
Interactions in our licensed database are recorded against drug classes. Nafcillin is filed under 4 classifications, and Wild Carrot has documented interactions with 4 drug classes — none of Nafcillin's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Wild Carrot interact with any other medications?
Yes. Wild Carrot has 475 documented drug interactions in our database — Nafcillin is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Nafcillin interact with any supplements?
Yes. Nafcillin has documented interactions with 58 supplements in our database — Wild Carrot is not one of them. The Nafcillin interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Wild Carrot monograph Uses, safety profile, and every drug interaction in one place Nafcillin Injection drug information The full plain-English guide to this medication Nafcillin supplement interactions Every supplement checked against Nafcillin, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Nafcillin 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.