Drug & supplement interaction

Java Tea + Sildenafil

Sildenafil brand name: Revatio.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Java Tea 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

Java Tea 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 Java Tea 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.

Java Tea safety at a glance

Java Tea overall Use caution Generally considered well tolerated short-term, but human safety data are limited.
Pregnancy Avoid Not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety data, so it is best avoided while breastfeeding.

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

Still wondering about combining Sildenafil and Java Tea? 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. Java Tea has documented interactions with 2 drug classes — the most serious being antihypertensive drugs (moderate) and lithium (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

Java Tea Does Interact With Other Medications

Java Tea has 173 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 173 No known interaction 2,657 (incl. Sildenafil)
Taking anything else?

Check Another of Your Medications Against Java Tea

Covers the 2,830 medications we’ve checked against Java Tea. 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 Java Tea. 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 › Java Tea’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Java Tea side to compare — that is a limit of the record, not a statement that Java Tea has no side effects.

Overlapping uses

What Sildenafil Is Prescribed For, and What Java Tea Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Sildenafil is a prescription medicine with approved uses on its FDA label. Java Tea is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Sildenafil is prescribed for: 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.

Read the rest of what Sildenafil is prescribed for

Revatio oral suspension and injection are also approved for PAH in children ages 1 to 17.

Java Tea has been studied for:

  • Hypertension studied, not established Java Tea has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Java Tea for hypertension

    Some preliminary clinical research in adults with hypertension that is not adequately controlled with antihypertensive medication shows that taking a specific combination supplement (OrthoSiphon, Rottapharm-Madaus SpA) containing Java tea 100 mg (standardized leaf alcoholic dry extract, with sinensetin 0.1%), berberine 500 mg, monakolin 3 mg, and policosanols 10 mg, daily for 8 weeks, reduces systolic and diastolic b…

    1 source cited
    1. 94851. Cicero AF, De Sando V, Izzo R, Vasta A, Trimarco A, Borghi C. Effect of a combined nutraceutical containing Orthosiphon stamineus effect on blood pressure and metabolic syndrome components in hypertensive dyslipidaemic patients: a randomized clinical tria

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Sildenafil on your own; if you are taking Java Tea for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Java Tea 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 Java Tea 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 Java Tea 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 Java Tea as Part of a Dietary Supplement Product? Check It for Interactions

We hold 64 real supplement products containing Java Tea, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Java Tea. Even though Java Tea 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 Java Tea 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 Java Tea
Steady interest

#1,143 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Sildenafil
Top 25%

#617 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 Java Tea reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Java Tea and Sildenafil 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 Java Tea

What is Java Tea?

  • Urinary tract health
  • Mild fluid retention
  • Kidney and bladder support
  • Mild diuretic ('water pill') effect
  • Digestive complaints

Java Tea is a Southeast Asian herb traditionally used as a gentle diuretic and for urinary tract and kidney support. Some early lab, animal, and small human studies are encouraging, but high-quality evidence in people is limited, so it should not replace proven treatments. Talk to a pharmacist or doctor before using it, especially if you have kidney problems or take other medicines.

Orthosiphon stamineus · Lamiaceae · Leaves and stems (aerial parts) · Tea, dried herb, capsules, liquid extracts, tinctures

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

Java Tea: dosing

There is no well-established standardized dose for Java Tea. The right amount can vary depending on the form (tea, capsule, or extract) and the strength of the product.The safest approach is to follow the directions on the product label and not exceed the recommended amount. Because Java Tea has a diuretic effect, it is also wise to stay well hydrated.

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

Read the full Java Tea 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 & Java Tea

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

0Major
173Moderate
0Minor
2,656No known interaction
173 Moderate 2,656 No interaction
Moderate

173 interactions

Showing 60 of 173 moderate interactions — see all 173 on the Java Tea page.

No interaction 2,656 drugs checked — show the list

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

Showing the 60 most looked-up of 2,656 medications checked with no known interaction — see the full Java Tea list.

See the full Java Tea interactions page
See every supplement checked against Sildenafil, ranked by severity
Evidence & sources

Java Tea References

The 2 references that drive our Java Tea 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. Cicero AF, De Sando V, Izzo R, Vasta A, Trimarco A, Borghi C. Effect of a combined nutraceutical containing Orthosiphon stamineus effect on blood pressure and metabolic syndrome components in hypertensive dyslipidaemic patients: a randomized clinical tria
  2. Vahlensieck W, Lorenz H, Schumacher-Stimpfl A, Fischer R, Naber KG. Effect of a herbal therapy on clinical symptoms of acute lower uncomplicated urinary tract infections in women: Secondary analysis from a randomized controlled trial. Antibiotics (Basel). 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 Java Tea and Sildenafil Together: Common Questions

Is it safe to take Java Tea with Sildenafil?
We do not list a known interaction between Java Tea 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.
Are Java Tea and Sildenafil used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Java Tea in each. That is a conversation for your prescriber, especially if Sildenafil is being adjusted to a target.
How was the Java Tea and Sildenafil combination checked?
Interactions in our licensed database are recorded against drug classes. Sildenafil is filed under 6 classifications, and Java Tea has documented interactions with 2 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 Java Tea interact with any other medications?
Yes. Java Tea has 173 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 — Java Tea 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

Java Tea 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Sildenafil and Java Tea?

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.