Drug & supplement interaction

Cornflower + Lansoprazole

Lansoprazole brand name: Prevacid.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Cornflower and Lansoprazole 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.

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Interaction report

Cornflower and Lansoprazole

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 Lansoprazole and Cornflower 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Cornflower at all — not against Lansoprazole, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

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.

Cornflower safety at a glance

Cornflower overall Use caution Generally low-risk in food and tea amounts, but human safety data are limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data, so avoid while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Lansoprazole and Cornflower? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Lansoprazole’s Own FDA Label Lists

This is not an interaction — none of it involves Cornflower. These are the most notable effects listed in the ADVERSE REACTIONS section of Lansoprazole’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Kidney problems Worth acting on mentioned in 42.3% of FDA reports for Lansoprazole
  • Loss of vision Worth acting on
  • Low magnesium Worth acting on
  • A change in thyroid levels Worth acting on
  • Hearing loss Worth acting on
  • A stroke or mini-stroke Worth acting on
  • Bone thinning Worth acting on
  • Pain or burning when passing urine Worth acting on
  • Memory problems Worth acting on
  • Dehydration Worth acting on

Showing the 10 most notable of 89 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Lansoprazole. Read the label on DailyMed › Where a percentage is shown, it is the share of 177,063 voluntary FDA FAERS reports for Lansoprazole that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Cornflower’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Cornflower side to compare — that is a limit of the record, not a statement that Cornflower has no side effects.

From our Q&A

Questions About Cornflower or Lansoprazole

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

This page covers Cornflower only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lansoprazole page lists 153 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 101 moderate · 49 minor.

From our pharmacist’s overview on the Lansoprazole page

“Heartburn and reflux send plenty of people toward both lansoprazole (Prevacid) and the supplement aisle, and that pairing calls for genuine care, since three of the 153 ingredients on file here carry major-rated interactions. Most of the list works through the liver enzymes that clear lansoprazole, either slowing them down (grapefruit,…”

Reviewed by 2 · Jul 18, 2026

Open the Lansoprazole interaction page

One more smart check

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

We hold 16 real supplement products containing Cornflower, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Cornflower. Even though Cornflower itself has no known interaction with Lansoprazole, 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 Cornflower and Lansoprazole 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 Cornflower
Steady interest

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

29 days ago today
Medication Lansoprazole
Top half

#1,286 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. Cornflower is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Cornflower reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Cornflower and Lansoprazole records this page draws on were last updated June 22, 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 Cornflower

What is Cornflower?

  • Eye irritation and tired eyes (as a wash or compress)
  • Mild digestive upset
  • Minor skin irritation
  • Mild cough or sore throat
  • Used as a natural coloring or garnish in teas and foods

Cornflower is a blue-flowered plant traditionally used as a mild eye wash, skin soother, and digestive tea, but there is very little modern scientific evidence to show it actually works for any health condition. It is generally considered low-risk in food amounts, but anyone allergic to ragweed or related plants should be cautious, and it is best avoided in pregnancy and breastfeeding due to a lack of safety data.

Centaurea cyanus · Asteraceae · Flowers (petals), and sometimes the whole flowering tops · Tea, dried petals, eyewash or compress (water infusion), tinctures, and as an ingredient in cosmetics

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

Cornflower: dosing

There is no official or standardized dose for cornflower. Because it has not been well studied in people, experts cannot recommend a specific safe and effective amount.If you choose to use a cornflower product, follow the directions on the product label and do not exceed them. A pharmacist or doctor can help you decide whether it is appropriate for you, especially if you take medications or have a health condition. When in doubt, start low and watch for any reaction.

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

Read the full Cornflower monograph & all interactions
Medication

About Lansoprazole

What Is Lansoprazole Used For?

Brand name: Prevacid

Lansoprazole is prescribed for a range of conditions where excess stomach acid is the problem. It treats active stomach and duodenal ulcers (sores in the stomach or upper small intestine), helps heal ulcers caused by NSAID pain relievers, and can reduce the risk of those ulcers coming back.

It's also used for gastroesophageal reflux disease (GERD), erosive esophagitis (acid damage to the esophagus), and rare conditions where the stomach makes far too much acid — like Zollinger-Ellison syndrome. When combined with antibiotics, it helps wipe out H. pylori bacteria that cause recurring ulcers.

Most-Reported Side Effects for Lansoprazole

From FAERS, the FDA’s public side-effect reporting system (177,063 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Chronic kidney disease 32,791 reports
Acute kidney injury 18,792 reports
Renal failure 13,844 reports
End stage renal disease 9,798 reports
Renal injury 9,520 reports
See full Lansoprazole drug information
Keep checking

Other Drugs & Cornflower

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

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Cornflower list.

See the full Cornflower interactions page
See every supplement checked against Lansoprazole, ranked by severity
Evidence & sources

Cornflower References

The 2 sources that drive our Cornflower monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Cornflower is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs at a Glance — NIH National Center for Complementary and Integrative Health (NCCIH) Source
  2. Herbal and Dietary Supplements — MedlinePlus (U.S. National Library of Medicine) Source

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 Cornflower and Lansoprazole Together: Common Questions

Is it safe to take Cornflower with Lansoprazole?
We do not list a known interaction between Cornflower and Lansoprazole. 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.
Does Lansoprazole interact with any supplements?
Yes. Lansoprazole has documented interactions with 153 supplements in our database — Cornflower is not one of them. The Lansoprazole 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

Cornflower monograph Uses, safety profile, and every drug interaction in one place Lansoprazole drug information The full plain-English guide to this medication Lansoprazole supplement interactions Every supplement checked against Lansoprazole, 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 Lansoprazole and Cornflower?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.