Drug & supplement interaction

Ellagic Acid + Tadalafil

Tadalafil brand names: Cialis, Tadliq.

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 Ellagic Acid and Tadalafil 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

Ellagic Acid and Tadalafil

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 Tadalafil and Ellagic Acid 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.

Ellagic Acid safety at a glance

Ellagic Acid overall Use caution Generally considered safe in foods, but concentrated supplements are not well studied in humans.
Pregnancy Avoid Not enough safety data on supplement doses; food amounts are fine but avoid concentrated supplements.
Breastfeeding Avoid There is not enough safety information, so concentrated supplements are best avoided.

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

Still wondering about combining Tadalafil and Ellagic Acid? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Tadalafil

Interactions in our licensed database are recorded against drug classes, not just single drug names. Tadalafil is filed under 5 classifications — including phosphodiesterase-5 inhibitors, vasodilators, cytochrome p450 3a4 (cyp3a4) substrates. Ellagic Acid has documented interactions with 1 drug class — the most serious being antidiabetes drugs (moderate) — and none of Tadalafil’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

Ellagic Acid Does Interact With Other Medications

Ellagic Acid has 86 moderate known drug interactions in our database — Tadalafil 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. Tadalafil)
Taking anything else?

Check Another of Your Medications Against Ellagic Acid

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

What to actually watch for

What Ellagic Acid Itself Has Been Linked To

This is not an interaction — nothing below involves Tadalafil. It is the side-effect record for Ellagic Acid on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Ellagic Acid, this list is the first place to look.

  • Diarrhea / Nausea Additional detail

    “Orally, a combination of ellagic acid and graviola was associated with nausea and diarrhea in 2 out of 30 patients in one clinical trial, leading to discontinuation. It is unclear if these effects are due to ellagic acid, graviola, or the combination.”

    Ellagic Acid · Natural Medicines adverse-effect record, reported in diarrhea.

    1 source cited
    1. 96297. Le Donne M, Lentini M, Alibrandi A, et al. Antiviral activity of Ellagic acid and Annona Muricata in cervical HPV related pre-neoplastic lesions: A randomized trial. J Funct Food 2017;35:549-54. DOI

Everything above comes from the Natural Medicines adverse-effect record for Ellagic Acid — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Tadalafil’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Tadalafil column appears here.

From our Q&A

Questions About Ellagic Acid or Tadalafil

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

This page covers Ellagic Acid only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tadalafil page lists 144 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Mistletoe (major), Grapefruit (major), Hawthorn (major) and St. John's Wort (major).

By severity: 5 major · 98 moderate · 41 minor.

From our pharmacist’s overview on the Tadalafil page

“Grapefruit juice is the first thing to know about if you take tadalafil (Cialis, Tadliq). It blocks CYP3A4, the enzyme that clears the drug, so blood levels climb and side effects like a steep drop in blood pressure become more likely.”

Reviewed by 2 · Jul 18, 2026

Open the Tadalafil interaction page

One more smart check

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

We hold 121 real supplement products containing Ellagic Acid, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Ellagic Acid. Even though Ellagic Acid itself has no known interaction with Tadalafil, 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 Ellagic Acid and Tadalafil 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 Ellagic Acid
Steady interest

#1,197 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Tadalafil
Top 1%

#16 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 Ellagic Acid reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Ellagic Acid and Tadalafil 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 Ellagic Acid

What is Ellagic Acid?

  • Antioxidant support
  • General anti-aging or 'cleanse' products
  • Cancer prevention interest
  • Skin and beauty products
  • Heart and metabolic health

Ellagic acid is a natural plant compound (a polyphenol) found in foods like pomegranates, raspberries, strawberries, and walnuts. It is studied mostly in laboratory and animal research for antioxidant and possible anti-cancer effects, but strong human evidence is lacking. Eating ellagic-acid-rich foods is healthy, but supplements are not proven to treat any disease, so check with a pharmacist or doctor before using them.

Naturally found in the fruit, seeds, and skins of many plants · Capsules, tablets, powders, and as part of fruit extracts (such as pomegranate or red raspberry seed extract)

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

Ellagic Acid: dosing

There is no well-established standard dose of ellagic acid as a supplement. Research studies have used different amounts and different forms, so it is hard to recommend a specific milligram amount.If you choose to use a product, follow the directions on the label and do not exceed the recommended dose.

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

Read the full Ellagic Acid monograph & all interactions
Medication

About Tadalafil

What Is Tadalafil Used For?

Brand names: Cialis, Tadliq

Tadalafil tablets (including Cialis and generic tadalafil) are used to treat erectile dysfunction (ED), the symptoms of benign prostatic hyperplasia (BPH — an enlarged prostate), or both conditions together. When used with the drug finasteride to start BPH treatment, this combination is recommended for up to 26 weeks.

Adcirca, Alyq (tablets), and Tadliq (oral suspension) are indicated specifically for pulmonary arterial hypertension (PAH — high blood pressure in the lungs), to improve the ability to exercise.

Most-Reported Side Effects for Tadalafil

From FAERS, the FDA’s public side-effect reporting system (99,210 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 11,917 reports
Headache 10,982 reports
Diarrhea 8,020 reports
Nausea 6,697 reports
Fatigue 6,080 reports
See full Tadalafil drug information
Keep checking

Other Drugs & Ellagic Acid

Browse every other medication we’ve checked against Ellagic Acid — 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 Ellagic Acid page.

No interaction 2,743 drugs checked — show the list

We also checked Ellagic Acid 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 Ellagic Acid list.

See the full Ellagic Acid interactions page
See every supplement checked against Tadalafil, ranked by severity
Evidence & sources

Ellagic Acid References

The 9 references that drive our Ellagic Acid 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. Ertam I, Mutlu B, Unal I, Alper S, Kivçak B, Ozer O. Efficiency of ellagic acid and arbutin in melasma: a randomized, prospective, open-label study. J Dermatol. 2008;35(9):570-4. PubMed
  2. Dahl A, Yatskayer M, Raab S, Oresajo C. Tolerance and efficacy of a product containing ellagic and salicylic acids in reducing hyperpigmentation and dark spots in comparison with 4% hydroquinone. J Drugs Dermatol. 2013;12(1):52-8.
  3. Falsaperla M, Morgia G, Tartarone A, Ardito R, Romano G. Support ellagic acid therapy in patients with hormone refractory prostate cancer (HRPC) on standard chemotherapy using vinorelbine and estramustine phosphate. Eur Urol. 2005;47(4):449-54 PubMed
  4. Le Donne M, Lentini M, Alibrandi A, et al. Antiviral activity of Ellagic acid and Annona Muricata in cervical HPV related pre-neoplastic lesions: A randomized trial. J Funct Food 2017;35:549-54. DOI
  5. Liu Y, Yu S, Wang F, et al. Chronic administration of ellagic acid improved the cognition in middle-aged overweight men. Appl Physiol Nutr Metab. 2018;43(3):266-73. PubMed
  6. Serretta V, Berardinis E, Simonato A, et al. A prospective observational study on oral administration of Ellagic Acid and Annona Muricata in patients affected by non-muscle invasive bladder cancer not undergoing maintenance after 6-week intravesical proph
  7. Ghadimi M, Foroughi F, Hashemipour S, et al. Randomized double-blind clinical trial examining the Ellagic acid effects on glycemic status, insulin resistance, antioxidant, and inflammatory factors in patients with type 2 diabetes. Phytother Res 2021;35(2) PubMed
  8. Kazemi M, Lalooha F, Nooshabadi MR, Dashti F, Kavianpour M, Haghighian HK. Randomized double blind clinical trial evaluating the Ellagic acid effects on insulin resistance, oxidative stress and sex hormones levels in women with polycystic ovarian syndrome PubMed
  9. Ghadimi M, Foroughi F, Hashemipour S, et al. Decreased insulin resistance in diabetic patients by influencing Sirtuin1 and Fetuin-A following supplementation with ellagic acid: a randomized controlled trial. Diabetol Metab Syndr 2021;13(1):16. 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 Ellagic Acid and Tadalafil Together: Common Questions

Is it safe to take Ellagic Acid with Tadalafil?
We do not list a known interaction between Ellagic Acid and Tadalafil. 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.
How was the Ellagic Acid and Tadalafil combination checked?
Interactions in our licensed database are recorded against drug classes. Tadalafil is filed under 5 classifications, and Ellagic Acid has documented interactions with 1 drug class — none of Tadalafil'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 Ellagic Acid interact with any other medications?
Yes. Ellagic Acid has 86 documented drug interactions in our database — Tadalafil 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 Tadalafil interact with any supplements?
Yes. Tadalafil has documented interactions with 144 supplements in our database — Ellagic Acid is not one of them. The Tadalafil 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

Ellagic Acid monograph Uses, safety profile, and every drug interaction in one place Tadalafil drug information The full plain-English guide to this medication Tadalafil supplement interactions Every supplement checked against Tadalafil, 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 9 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tadalafil and Ellagic Acid?

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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.