Drug & supplement interaction

Dragon Fruit + Famotidine

Famotidine brand names: Pepcid, Famotidine, Pepcid AC, Famotidine Injection.

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

We found no known interaction between Dragon Fruit and Famotidine 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

Dragon Fruit and Famotidine

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 Famotidine and Dragon Fruit 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.

Dragon Fruit safety at a glance

Dragon Fruit overall Generally safe Dragon fruit is widely eaten as a food and is generally safe for most people.
Pregnancy Use caution The fruit as food is generally fine, but concentrated supplements or extracts have not been studied in pregnancy, so use caution.
Breastfeeding Use caution The fruit is considered fine in normal food amounts, but supplement forms lack safety data, so use caution.

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

Still wondering about combining Famotidine and Dragon Fruit? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Famotidine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Famotidine is filed under 4 classifications — including h2-blockers, organic anion transporter 3 (oat3) substrates, seizure threshold lowering drugs. Dragon Fruit has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Famotidine’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

Dragon Fruit Does Interact With Other Medications

Dragon Fruit has 86 moderate known drug interactions in our database — Famotidine 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. Famotidine)
Taking anything else?

Check Another of Your Medications Against Dragon Fruit

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

What to actually watch for

No Interaction Found — But Data Suggests Dragon Fruit and Famotidine 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.

  • Hives Worth acting on Additional detail

    Dragon Fruit

    “Allergy to dragon fruit has been reported in case reports with symptoms including vomiting, swollen tongue, skin redness, and hives.”

    Dragon Fruit · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).

    1 source cited
    1. 93930. Kleinheinz A, Lepp U, Hausen BM, Petersen A, Becker WM. Anaphylactic reaction to (mixed) fruit juice containing dragon fruit. J Allergy Clin Immunol. 2009 Oct;124(4):841-2. PubMed

    Famotidine

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

  • Vomiting Additional detail

    Dragon Fruit

    Recorded for Dragon Fruit in the same Natural Medicines adverse-effect record shown under Hives above.

    Famotidine

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

Effects for Famotidine come from the ADVERSE REACTIONS section of its FDA label; effects for Dragon Fruit 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.

From our Q&A

Questions About Dragon Fruit or Famotidine

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

This page covers Dragon Fruit only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Famotidine page lists 41 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), African Wild Potato (moderate), Banderol (moderate), Beer (moderate) and Biofeedback (moderate).

By severity: 1 major · 19 moderate · 21 minor.

From our pharmacist’s overview on the Famotidine page

“Famotidine (Pepcid) treats heartburn and acid reflux, a low-stakes job most days, but its interaction list earns genuine caution because one entry is rated major. That entry is activated charcoal, which can bind famotidine in the gut and sharply cut how much of the drug reaches your blood.”

Reviewed by 2 · Jul 18, 2026

Open the Famotidine interaction page

One more smart check

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

We hold 13 real supplement products containing Dragon Fruit, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Dragon Fruit. Even though Dragon Fruit itself has no known interaction with Famotidine, 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 Dragon Fruit and Famotidine 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 Dragon Fruit
Steady interest

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

29 days ago today
Medication Famotidine
Top half

#840 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 Dragon Fruit reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Dragon Fruit and Famotidine records this page draws on were last updated July 10, 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 Dragon Fruit

What is Dragon Fruit?

  • General nutrition and antioxidant support
  • Digestive health and regularity
  • Blood sugar support
  • Heart and cholesterol health
  • Immune support

Dragon fruit is a colorful tropical fruit that is a nutritious, low-calorie source of fiber, vitamin C, and antioxidants. It is safe and healthy to eat as a food for most people, but strong human evidence that supplements or extracts treat any disease is lacking. Enjoy it as part of a balanced diet, and talk to your pharmacist before using concentrated supplements.

Hylocereus undatus · Cactaceae · Fruit (pulp and seeds); sometimes flower and peel · Fresh fruit, juice, smoothies, dried fruit, powder, capsules, and supplements

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

Dragon Fruit: dosing

There is no official or standardized dose of dragon fruit. As a food, it is simply eaten in normal serving sizes, like any other fruit.For supplements, powders, or capsules, there is no proven effective dose. If you choose to use a product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Dragon Fruit monograph & all interactions
Medication

About Famotidine

What Is Famotidine Used For?

Brand names: Pepcid, Famotidine, Pepcid AC, Famotidine Injection

Famotidine treats a range of acid-related conditions. Over-the-counter tablet products — including Acid Controller, Acid Reducer, Acid Relief, Amazon Basic Care Acid Reducer, basic care acid reducer, and Calmicid AC — are used to relieve and prevent heartburn associated with acid indigestion and sour stomach.

Prescription-strength famotidine tablets and oral suspension are indicated for active duodenal ulcers (ulcers in the small intestine), active gastric ulcers (stomach ulcers), GERD (acid reflux disease), erosive esophagitis (acid-damaged esophagus), and pathological hypersecretory conditions such as Zollinger-Ellison syndrome. The oral suspension is also indicated in children from birth onward for GERD and, in children one year and older, for peptic ulcer disease. Famotidine injection is used in hospitalized patients who cannot take medication by mouth.

See full Famotidine drug information
Keep checking

Other Drugs & Dragon Fruit

Browse every other medication we’ve checked against Dragon Fruit — 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 Dragon Fruit page.

No interaction 2,743 drugs checked — show the list

We also checked Dragon Fruit 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 Dragon Fruit list.

See the full Dragon Fruit interactions page
See every supplement checked against Famotidine, ranked by severity
Evidence & sources

Dragon Fruit References

The 2 references that drive our Dragon Fruit 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. Kleinheinz A, Lepp U, Hausen BM, Petersen A, Becker WM. Anaphylactic reaction to (mixed) fruit juice containing dragon fruit. J Allergy Clin Immunol. 2009 Oct;124(4):841-2. PubMed
  2. Poolsup N, Suksomboon N, Paw NJ. Effect of dragon fruit on glycemic control in prediabetes and type 2 diabetes: a systematic review and meta-analysis. PLoS One. 2017;12(9):e0184577. 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 Dragon Fruit and Famotidine Together: Common Questions

Is it safe to take Dragon Fruit with Famotidine?
We do not list a known interaction between Dragon Fruit and Famotidine. 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 Dragon Fruit and Famotidine 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 Dragon Fruit and Famotidine combination checked?
Interactions in our licensed database are recorded against drug classes. Famotidine is filed under 4 classifications, and Dragon Fruit has documented interactions with 1 drug class — none of Famotidine'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 Dragon Fruit interact with any other medications?
Yes. Dragon Fruit has 86 documented drug interactions in our database — Famotidine 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 Famotidine interact with any supplements?
Yes. Famotidine has documented interactions with 41 supplements in our database — Dragon Fruit is not one of them. The Famotidine 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

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

Our pharmacists answer your medication & supplement questions — free.

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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.