Drug & supplement interaction

Tarragon + Sildenafil

Sildenafil brand name: Revatio.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Tarragon and Sildenafil 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

Tarragon and Sildenafil

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 Sildenafil and Tarragon 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.

Tarragon safety at a glance

Tarragon overall Use caution Food amounts are generally safe, but concentrated extracts and essential oil should be used cautiously due to estragole content.

Pregnancy Likely Unsafe Insufficient reliable information is available; avoid using. Read the full pregnancy detail

Breastfeeding Likely Unsafe Insufficient reliable information is available; avoid using. Read the full breastfeeding detail

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 Sildenafil and Tarragon? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Sildenafil

Interactions in our licensed database are recorded against drug classes, not just single drug names. Sildenafil is filed under 6 classifications — including phosphodiesterase-5 inhibitors, vasodilators, cytochrome p450 2c9 (cyp2c9) substrates. Tarragon has documented interactions with 3 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate), cns depressants (moderate) and monoamine oxidase inhibitors (maois) (moderate) — and none of Sildenafil’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

Tarragon Does Interact With Other Medications

Tarragon has 359 moderate known drug interactions in our database — Sildenafil isn’t one of them. If you take anything else, check it against the full list below.

Moderate 359 No known interaction 2,471 (incl. Sildenafil)

Taking anything else?

Check Another of Your Medications Against Tarragon

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

What to actually watch for

What Sildenafil’s Own FDA Label Lists

This is not an interaction — none of it involves Tarragon. These are the most notable effects listed in the ADVERSE REACTIONS section of Sildenafil’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. 2 of them are worth acting on rather than waiting out — marked below.

Hearing loss Worth acting on
Bleeding or bruising Worth acting on
Erection problems
Flushing
A stuffy or runny nose
Blurred vision
Back pain
Low blood pressure
Muscle pain
Stomach upset

Showing the 10 most notable of 14 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 Sildenafil. Read the label on DailyMed › Tarragon’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Tarragon side to compare — that is a limit of the record, not a statement that Tarragon has no side effects.

Special populations

Tarragon in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

Insufficient reliable information is available; 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

From our Q&A

Questions About Tarragon or Sildenafil

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

This page covers Tarragon only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sildenafil page lists 160 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 · 114 moderate · 41 minor.

From our pharmacist’s overview on the Sildenafil page

“Sildenafil relaxes blood vessels, whether prescribed as Revatio for pulmonary hypertension or as Viagra, and that blood-pressure-lowering action makes this list one to treat with genuine care. Of the 160 supplement and herbal ingredients on file, five carry a major rating, and those deserve understanding first.”

Reviewed by 2 · Jul 18, 2026

Open the Sildenafil interaction page

One more smart check

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

We hold 36 real supplement products containing Tarragon, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Tarragon. Even though Tarragon itself has no known interaction with Sildenafil, 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 Tarragon and Sildenafil 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 Tarragon

Top half

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

29 days ago today

Medication Sildenafil

Top 25%

#360 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 Tarragon reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Tarragon and Sildenafil 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 Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Tarragon

What is Tarragon?

Digestive upset
Appetite stimulation
Sleep and mild restlessness
Toothache and oral discomfort
Blood sugar support (preliminary)
Culinary flavoring

Tarragon is a flavorful culinary herb that has been used in traditional medicine for digestion, sleep, and other complaints, but solid human evidence for any health benefit is lacking. Amounts used in cooking are generally considered safe, while concentrated extracts and the essential oil should be used cautiously because tarragon contains estragole, a compound studied for possible safety concerns. Talk to your pharmacist or doctor before using tarragon as a supplement.

Artemisia dracunculus · Asteraceae · Leaves and essential oil · Fresh or dried herb (culinary), tea, essential oil, extracts, capsules

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

Tarragon: dosing

There is no well-established medicinal dose for tarragon. As a food, it is used freely as a seasoning. As a tea, it is usually made by steeping a small amount of dried or fresh leaves in hot water.For capsules, extracts, or essential oil, follow the directions on the product label and do not exceed them. Because product strengths vary and estragole content can differ, it is best to use these products only with guidance from a pharmacist or doctor. Never take the essential oil internally unless specifically directed by a qualified healthcare professional.

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

Read the full Tarragon monograph & all interactions

Medication

About Sildenafil

What Is Sildenafil Used For?

Brand name: Revatio

Sildenafil treats two distinct conditions depending on the product. Viagra (tablet) and Vybrique (dissolving oral film) are approved for erectile dysfunction (ED) — difficulty getting or keeping an erection. Generic sildenafil tablets and oral film are also approved for ED.

Revatio and several generic sildenafil products (tablets, oral suspension, and injection) are used for pulmonary arterial hypertension (PAH) — high blood pressure in the arteries of the lungs — in adults to improve exercise ability and slow the disease from getting worse. Revatio oral suspension and injection are also approved for PAH in children ages 1 to 17.

Most-Reported Side Effects for Sildenafil

From FAERS, the FDA’s public side-effect reporting system (126,564 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 13,327 reports

Headache 10,220 reports

Diarrhea 7,049 reports

Nausea 6,489 reports

Fatigue 6,390 reports

See full Sildenafil drug information

Keep checking

Other Drugs & Tarragon

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

0Major

359Moderate

0Minor

2,470No known interaction

359 Moderate 2,470 No interaction

Moderate

359 interactions

Showing 60 of 359 moderate interactions — see all 359 on the Tarragon page.

No interaction 2,470 drugs checked — show the list

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

Showing the 60 most looked-up of 2,470 medications checked with no known interaction — see the full Tarragon list.

See the full Tarragon interactions page

See every supplement checked against Sildenafil, ranked by severity

Evidence & sources

Tarragon References

The 9 references that drive our Tarragon 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.

Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
Yazdanparast, R. and Shahriyary, L. Comparative effects of Artemisia dracunculus, Satureja hortensis and Origanum majorana on inhibition of blood platelet adhesion, aggregation and secretion. Vascul.Pharmacol 2008;48(1):32-37. PubMed
Sayyah, M., Nadjafnia, L., and Kamalinejad, M. Anticonvulsant activity and chemical composition of Artemisia dracunculus L. essential oil. J Ethnopharmacol. 2004;94(2-3):283-287. PubMed
Vasil'ev, E. D., Il'nitskaia, S. I., Nikitenko, E. V., and Kaledin, V. I. [Age- and sex-related differences in sensitivity to hepatotoxic action of estragole in mice]. Ross.Fiziol.Zh.Im I.M.Sechenova 2005;91(9):1066-1070.
Shahriyary, L. and Yazdanparast, R. Inhibition of blood platelet adhesion, aggregation and secretion by Artemisia dracunculus leaves extracts. J Ethnopharmacol. 11-1-2007;114(2):194-198. PubMed
Drinkwater, N. R., Miller, E. C., Miller, J. A., and Pitot, H. C. Hepatocarcinogenicity of estragole (1-allyl-4-methoxybenzene) and 1'-hydroxyestragole in the mouse and mutagenicity of 1'-acetoxyestragole in bacteria. J Natl.Cancer Inst. 1976;57(6):1323-
Kaledin, V. I., Pakharukova, M. Y., Pivovarova, E. N., Kropachev, K. Y., Baginskaya, N. V., Vasilieva, E. D., Ilnitskaya, S. I., Nikitenko, E. V., Kobzev, V. F., and Merkulova, T. I. Correlation between hepatocarcinogenic effect of estragole and its infl
de Pradier E. A trial of a mixture of three essential oils in the treatment of postoperative nausea and vomiting. International Journal of Aromatherapy 2006;16(1):15-20. DOI
Aydin T, Akincioglu H, Gumustas M, Gulcin I, Kazaz C, Cakir A. Human monoamine oxidase (hMAO) A and hMAO B inhibitors from Artemisia dracunculus L. herniarin and skimmin: human mononamine oxidase A and B inhibitors from A. dracunculus L. Z Naturforsch C J

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 Tarragon and Sildenafil Together: Common Questions

Is it safe to take Tarragon with Sildenafil?

We do not list a known interaction between Tarragon and Sildenafil. 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 Tarragon and Sildenafil combination checked?

Interactions in our licensed database are recorded against drug classes. Sildenafil is filed under 6 classifications, and Tarragon has documented interactions with 3 drug classes — none of Sildenafil'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 Tarragon interact with any other medications?

Yes. Tarragon has 359 documented drug interactions in our database — Sildenafil 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 Sildenafil interact with any supplements?

Yes. Sildenafil has documented interactions with 160 supplements in our database — Tarragon is not one of them. The Sildenafil 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

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

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.