Drug & supplement interaction

Black Mustard + Ciprofloxacin

Ciprofloxacin brand names: Cipro, Ciprobay, Cipro XR, Ciloxan, Cipro IV, and others.

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 Black Mustard and Ciprofloxacin 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 label for Ciprofloxacin states a food rule worth keeping to, and 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

Black Mustard and Ciprofloxacin

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 Ciprofloxacin and Black Mustard 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.

Black Mustard safety at a glance

Black Mustard overall Use caution Generally safe as a food spice, but concentrated seeds or oil can irritate the skin and digestive tract.
Pregnancy Likely Unsafe When used orally for medicinal purposes. Black mustard might have abortifacient and menstrual stimulant effects. There is insufficient reliable information avai... Read the full pregnancy detail
Breastfeeding Use caution Food amounts are likely fine, but there is not enough safety data on medicinal use, so caution is advised.

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 Ciprofloxacin and Black Mustard? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Ciprofloxacin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Ciprofloxacin is filed under 12 classifications — including quinolone antibiotics, organic anion-transporting polypeptide substrates (oatp), cytochrome p450 1a2 (cyp1a2) inhibitors. Black Mustard has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Ciprofloxacin’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

Black Mustard Does Interact With Other Medications

Black Mustard has 86 moderate known drug interactions in our database — Ciprofloxacin isn’t one of them. If you take anything else, check it against the full list below.

Moderate 86 No known interaction 2,744 (incl. Ciprofloxacin)
Taking anything else?

Check Another of Your Medications Against Black Mustard

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

What to actually watch for

No Interaction Found — But Data Suggests Black Mustard and Ciprofloxacin 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.

  • Shortness of breath Worth acting on Additional detail

    Black Mustard

    “Orally, taking very large amounts of black mustard seed can lead to breathing difficulties and possibly death (18). In a case report, a 15 month-old male developed acute, severe respiratory distress after ingesting and aspirating ground black mustard seeds.”

    Black Mustard · Natural Medicines adverse-effect record, reported in acute respiratory distress syndrome (ards).

    2 sources cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    2. 64387. Gulbransen, G. and Esernio-Jenssen, D. Aspiration of black mustard. J Toxicol.Clin.Toxicol. 1998;36(6):591-593. PubMed

    Ciprofloxacin

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

  • Stomach pain / Diarrhea / Vomiting Additional detail

    Black Mustard

    “Orally, taking very large amounts of black mustard seed can lead to vomiting, stomach pain, and diarrhea (18).”

    Black Mustard · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Ciprofloxacin

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

Effects for Ciprofloxacin come from the ADVERSE REACTIONS section of its FDA label; effects for Black Mustard come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Black Mustard in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally for medicinal purposes. Black mustard might have abortifacient and menstrual stimulant effects. There is insufficient reliable information available about the safety of black mustard for its other uses during pregnancy; avoid using.

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

How to take them

Some Ciprofloxacin Products Have a Food Rule — Black Mustard Should Not Break It

At least one FDA label for a product containing Ciprofloxacin says to take it with food. If you take Black Mustard on an empty stomach out of habit, keep them separate — and take Ciprofloxacin with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Ciprofloxacin products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

With Dairy Products Concomitant administration of CIPRO with dairy products (like milk or yogurt) or calcium-fortified juices alone should be avoided since decreased absorption is possible; however, CIPRO may be taken with a meal that contains these products.

From the Dosage and Administration section of the FDA label we read for Ciprofloxacin — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

From our Q&A

Questions About Black Mustard or Ciprofloxacin

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Black Mustard or Ciprofloxacin, 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 Ciprofloxacin

This page covers Black Mustard only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ciprofloxacin page lists 163 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Apple (major), Asarabacca (major), Beer (major) and Grapefruit (major).

By severity: 8 major · 133 moderate · 22 minor.

From our pharmacist’s overview on the Ciprofloxacin page

“A glass of apple or grapefruit juice can sharply cut how much ciprofloxacin (Cipro) your body absorbs, because these juices block a transporter the antibiotic needs to reach the bloodstream. That is one of eight major-rated risks among the 163 supplement and herbal ingredients on file, and I treat this list as a genuine warning rather…”

Reviewed by 2 · Jul 18, 2026

Open the Ciprofloxacin interaction page

One more smart check

Taking Black Mustard as Part of a Dietary Supplement Product? Check It for Interactions

We hold 77 real supplement products containing Black Mustard, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Black Mustard. Even though Black Mustard itself has no known interaction with Ciprofloxacin, 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 Black Mustard and Ciprofloxacin 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 Black Mustard
Top half

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

29 days ago today
Medication Ciprofloxacin
Top 5%

#49 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 Black Mustard reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Black Mustard and Ciprofloxacin 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 Black Mustard

What is Black Mustard?

Black Mustard
  • Culinary spice
  • Muscle and joint aches (topical plaster)
  • Chest congestion (chest rub or poultice)
  • Digestive upset
  • Antioxidant and anti-inflammatory support

Black mustard is best known as a pungent culinary spice and a traditional topical remedy for muscle aches and congestion. Solid human evidence for any specific health benefit is limited, and concentrated seed extracts or undiluted oil can irritate or burn the skin. Use it mainly as a food, and talk to a pharmacist or doctor before using it medicinally.

Brassica nigra · Brassicaceae · Seeds and seed oil; sometimes leaves · Whole or ground seeds (spice), mustard oil, poultices/plasters, powder

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

Black Mustard: dosing

There is no well-established standardized medicinal dose for black mustard. As a culinary spice, it is simply used to taste in cooking.For topical or supplement products, follow the directions on the product label, and do not leave mustard plasters on the skin for long periods.

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

Read the full Black Mustard monograph & all interactions
Medication

About Ciprofloxacin

What Is Ciprofloxacin Used For?

Brand names: Cipro, Ciprobay, Cipro XR, Ciloxan, Cipro IV, Otiprio

Ciprofloxacin belongs to a class of antibiotics called fluoroquinolones. It's prescribed to treat bacterial infections in many parts of the body — including the urinary tract, skin, lungs, bones, joints, and digestive system. It's also used to protect against or treat anthrax and plague after exposure.

Because ciprofloxacin carries real risks, it's reserved for milder conditions like sinus infections, simple bladder infections, and flare-ups of chronic bronchitis only when there are no safer alternatives available.

See full Ciprofloxacin drug information
Keep checking

Other Drugs & Black Mustard

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

0Major
86Moderate
0Minor
2,743No known interaction
86 Moderate 2,743 No interaction
Moderate

86 interactions

Showing 60 of 86 moderate interactions — see all 86 on the Black Mustard page.

No interaction 2,743 drugs checked — show the list

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

Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Black Mustard list.

See the full Black Mustard interactions page
See every supplement checked against Ciprofloxacin, ranked by severity
Evidence & sources

Black Mustard References

The 8 references that drive our Black Mustard 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. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  5. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  6. Anand, P., Murali, K. Y., Tandon, V., Chandra, R., and Murthy, P. S. Preliminary studies on antihyperglycemic effect of aqueous extract of Brassica nigra (L.) Koch in streptozotocin induced diabetic rats. Indian J Exp.Biol 2007;45(8):696-701.
  7. Anand, P., Murali, Y. K., Tandon, V., Murthy, P. S., and Chandra, R. Insulinotropic effect of aqueous extract of Brassica nigra improves glucose homeostasis in streptozotocin induced diabetic rats. Exp.Clin.Endocrinol.Diabetes 2009;117(6):251-256.
  8. Gulbransen, G. and Esernio-Jenssen, D. Aspiration of black mustard. J Toxicol.Clin.Toxicol. 1998;36(6):591-593. PubMed

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 Black Mustard and Ciprofloxacin Together: Common Questions

Is it safe to take Black Mustard with Ciprofloxacin?
We do not list a known interaction between Black Mustard and Ciprofloxacin. 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 Black Mustard and Ciprofloxacin have any of the same side effects?
Yes — our sources link each of them separately to 4 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.
Should I take Black Mustard and Ciprofloxacin at the same time of day?
At least one FDA label for a product containing Ciprofloxacin says to take it with food. If you take Black Mustard on an empty stomach out of habit, keep them separate and take Ciprofloxacin with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ciprofloxacin products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Black Mustard and Ciprofloxacin combination checked?
Interactions in our licensed database are recorded against drug classes. Ciprofloxacin is filed under 12 classifications, and Black Mustard has documented interactions with 1 drug class — none of Ciprofloxacin'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 Black Mustard interact with any other medications?
Yes. Black Mustard has 86 documented drug interactions in our database — Ciprofloxacin 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 Ciprofloxacin interact with any supplements?
Yes. Ciprofloxacin has documented interactions with 163 supplements in our database — Black Mustard is not one of them. The Ciprofloxacin 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

Black Mustard monograph Uses, safety profile, and every drug interaction in one place Ciprofloxacin drug information The full plain-English guide to this medication Ciprofloxacin supplement interactions Every supplement checked against Ciprofloxacin, 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 8 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Ciprofloxacin and Black Mustard?

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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.